Micro-listening
Subordinating conjunctions: connect your ideas clearly
What are subordinating conjunctions?
Subordinating conjunctions link a dependent clause to a main clause, showing reason, time, contrast or condition. For example: 'Although the route was longer, we arrived early.' Use a comma after an opening dependent clause. In future time and condition clauses, use the present tense: 'When she arrives, we will begin.'
Key points
- Because gives a direct reason for an event.
- Although introduces an unexpected contrast between ideas.
- When, before and after organise events in time.
- If and unless introduce conditions and possible results.
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At a glance
| Form | Use it for | Example |
|---|---|---|
| because | Gives a direct, clear reason. | We postponed the meeting because Mia was ill. |
| although | Shows an unexpected contrast. | Although it was late, they continued working. |
| when | Introduces a time or schedule clause. | When the shop opens, we will enter. |
| if | Introduces a possible condition. | If the weather improves, we will walk. |
| unless | Means 'if not' for a condition. | Unless you hurry, you will miss the bus. |
The full explanation
A subordinating conjunction creates a relationship of dependence. One part of your sentence carries the primary information, while the joined clause adds necessary context such as cause, timing, or contrast. For instance, knowing that a meeting was canceled is helpful, but adding why it was canceled gives the listener the complete picture.
Because our flight was delayed by two hours, we missed the morning workshop.
Why it works: Because introduces the reason first, followed by a comma before the main result.
3 more examples
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Although the training session was intense, everyone passed the final assessment.
Although introduces an unexpected contrast without using but in the second clause.
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We will review the project budget when Alex arrives at the office.
When introduces a time clause that uses the present tense arrives for a future event.
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If you submit the invoice today, our accounting team will process it tomorrow.
If sets a condition in the present tense, followed by a comma and a future main clause.
Read the full guide
Try the listening exercise
Identify the complete main thought
Every clear sentence needs at least one clause that can stand on its own as a complete thought. When you add a subordinating conjunction to a clause, you turn that clause into supporting information. This supporting part cannot stand alone. Before you send a message, locate the subject and verb of your main clause to confirm that the core idea is fully expressed.
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We relocated the staff meeting to room four because the air conditioning broke.
Why it works: We relocated the staff meeting to room four is the independent main clause.
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Because the air conditioning broke, we relocated the staff meeting to room four.
Why it works: Because makes the first clause dependent, requiring the main clause to complete the sentence.
Your turn
Which part of this sentence is the main clause: 'Although Sarah felt unwell, she attended the client presentation'?
Answer: she attended the client presentation
Show the answer
Answer: she attended the client presentation
She attended the client presentation can stand alone as a complete sentence with its own subject and verb.
Choose because or since to explain a cause
When you want to explain why an event took place, use because to create a direct link between the action and its reason. You can also use since when the reason is already familiar to your listener. Keep in mind that since can also refer to a starting point in time, so selecting because prevents confusion whenever the time context is unclear.
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Carlos left the office early because his daughter had a doctor appointment.
Why it works: Because directly links the departure to the specific reason.
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Since everyone has read the briefing, we can begin the discussion immediately.
Why it works: Since introduces a reason that is already known to everyone in the room.
You can practise this again in Subordinating Conjunctions: Connect Ideas Clearly and Although, though, even though: Connect contrasting ideas.
Your turn
Which conjunction best provides a direct, unambiguous reason for a sudden schedule change?
Answer: because
Show the answer
Answer: because
Because clearly states the direct reason why something happened without ambiguity.
Use although to show an unexpected contrast
Use although or even though when the outcome goes against what normal expectations suggest. The clause that follows although introduces a real fact or situation, but the main clause reveals a surprising result. Be careful not to use both although and but in the same sentence, as English grammar requires only one connecting word to bridge the two clauses.
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Although the software update was complex, the team finished it before noon.
Why it works: Although highlights the contrast between the difficult task and the fast completion.
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Even though the weather looked stormy, our delivery arrived on schedule.
Why it works: Even though adds stronger emphasis to the surprising result.
Your turn
Identify the sentence that correctly connects contrasting ideas without duplicate connectors.
Answer: Although the budget was small, we produced a great video.
Show the answer
Answer: Although the budget was small, we produced a great video.
English uses either although or but to show contrast between clauses, never both together in one sentence.
Time actions with when, before, and after
Time conjunctions organize events in a clear chronological sequence. When marks an action occurring at the same moment or immediately after another event. Before shows an earlier event, while after shows a later one. A common error among intermediate learners is inserting will into the time clause when speaking about future plans, so be sure to use simple present forms instead.
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When the client calls, please transfer the line to my desk phone.
Why it works: The present tense calls refers to a future event following when.
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Before we sign the agreement, our legal team will review each section.
Why it works: Before marks the action that must happen first, using the present tense sign.
Your turn
Which sentence correctly refers to a future schedule using a time conjunction?
Answer: We will send the package when the warehouse confirms the address.
Show the answer
Answer: We will send the package when the warehouse confirms the address.
Future time clauses with when use the simple present tense confirms rather than will confirm.
Set conditions with if and unless
Conditional conjunctions describe a possible situation and its probable result. Use if to establish the circumstance under which an action will take place. When you want to express a negative condition meaning except if, choose unless. Similar to time clauses, conditional clauses that look forward into the future take a present tense verb rather than a modal will.
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If the supplier ships the parts on Monday, the repairs will begin Tuesday.
Why it works: If establishes the necessary condition in the present tense.
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Unless we receive approval by noon, we cannot release the announcement.
Why it works: Unless means if we do not receive approval.
Your turn
Choose the sentence that correctly expresses a condition for an upcoming event.
Answer: If the train arrives on time, we will catch our connecting flight.
Show the answer
Answer: If the train arrives on time, we will catch our connecting flight.
The condition takes the simple present arrives, leading to the future result will catch.
Mark boundaries with until and as soon as
Certain conjunctions specify an exact stopping point or an immediate transition. Use until to indicate that an action continues continuously up to a specific event or moment. Use as soon as to show that an action happens immediately after another action finishes. Both connectors emphasize precise timing, helping listeners understand deadlines and operational workflow.
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The security team will remain on site until the final visitor leaves.
Why it works: Until marks the exact point in time when the security presence ends.
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As soon as the payment clears, we will dispatch your order.
Why it works: As soon as emphasizes that dispatch happens immediately after payment.
Your turn
Which word best completes the sentence to show continuous action up to a stopping point: 'We stayed at the desk ___ the system backup completed'?
Answer: until
Show the answer
Answer: until
Until indicates that staying at the desk continued up to the moment the backup finished.
Place commas correctly when clauses change order
Punctuation depends directly on which clause begins the sentence. When you place the dependent clause first, insert a comma right after it to signal the shift to the main clause. If you begin with the main clause and place the subordinating conjunction in the middle, you do not need a comma in standard business English.
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Because our internet connection dropped, we paused the video conference.
Why it works: A comma separates the opening dependent clause from the main clause.
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We paused the video conference because our internet connection dropped.
Why it works: No comma is needed when the main clause comes first.
Your turn
Which sentence uses standard punctuation according to clause order?
Answer: After you make changes, you should save your document.
Show the answer
Answer: After you make changes, you should save your document.
An opening dependent clause requires a comma before the main clause begins.
Avoid sentence fragments during quick editing
A subordinating conjunction turns an independent thought into a dependent fragment if you end it with a period before attaching a main clause. When reviewing your emails, check that every clause starting with words like because, although, or when connects directly to an action clause. Standalone dependent clauses confuse readers by leaving thoughts incomplete.
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We renewed the office lease because the location works well for our staff.
Why it works: Connecting the reason directly to the main clause prevents a fragment.
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Although the price increased slightly, we decided to keep the service.
Why it works: The contrast clause joins the decision clause to form one complete sentence.
Your turn
Which of these selections is a sentence fragment that needs a main clause?
Answer: Since the store opened twenty minutes late.
Show the answer
Answer: Since the store opened twenty minutes late.
Because since is a subordinating conjunction, this clause cannot stand alone as a complete sentence.
Common mistakes
What learners often say, what to say instead, and why.
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Not this:
Although the task was difficult, but we completed it.Say: Although the task was difficult, we completed it.
Use although or but, not both together to connect the contrast.
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Not this:
When the manager will arrive, we will start.Say: When the manager arrives, we will start.
Future time clauses use the present tense; will belongs in the main clause.
-
Not this:
Because the office was closed.Say: Because the office was closed, we worked from home.
A clause beginning with because cannot stand alone as a complete sentence.
Before you go
Remember this
Choose your conjunction based on the relationship between your thoughts: because for causes, although for surprises, when for schedules, and if for conditions. When the dependent clause starts the sentence, insert a comma after it. Always verify that your sentence contains at least one independent clause that can stand alone.
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Please call my desk when Ava arrives.
When introduces the time clause, and the present form arrives indicates the future event.
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At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
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At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
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At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
Listening 2 of 4
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Go home early if Oliver agrees.
If introduces the condition that allows the person to leave early.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
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Listening 3 of 4
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We chose a local bus because our morning train broke down near central station. Everyone waited patiently until an empty shuttle arrived.
Because states the cause of taking a bus, while until marks the time boundary when the waiting ended.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The final t or d is barely said before the next consonant.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The final t or d is barely said before the next consonant.
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Listening 4 of 4
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Because our regional auditors arrived early today, we must reorganize aisle nine immediately. If Oliver prepares our stock sheets now, our picking crew can scan each barcode without delay. We will review our final tally when Ava opens our central registry room after lunch. Everyone can take an early break once our records match.
Because explains the reason for reorganizing the aisle, if sets the condition for scanning barcodes, and when marks the timing of the tally review.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
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Describe a recent time when your daily schedule changed unexpectedly, explaining the cause and what you did as a result in 20 to 30 seconds.
Use: subordinating conjunctions: connect your ideas clearly
You could start with “I had to adjust my morning routine because…”
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Please call my desk when Ava arrives.
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Questions about "Subordinating conjunctions: connect your ideas clearly"
Can I always use since instead of because to give a reason?
You can use since when the reason is already known or obvious to the listener, but because is stronger and clearer. Furthermore, since often refers to a point in time, such as since last Tuesday. If there is any risk of confusion, choose because.
Because the road is closed, we must take the highway.
Since you know the software well, could you lead the demonstration?
Do I ever need a comma before because in the middle of a sentence?
In standard American English, you do not put a comma before because when it follows the main clause. The only exception occurs when the main clause contains a negative verb and a comma is needed to prevent misunderstanding.
We stayed inside because the storm began.
I did not call Maya, because I wanted to surprise her in person.
What is the difference between although and though?
Both words have the same meaning when introducing a contrast clause. Although sounds slightly more formal and appears frequently in business writing. Though is very common in informal speech and can also appear at the very end of a sentence.
Although the project was difficult, we finished on time.
The project was difficult. We finished on time, though.
Why can I not say 'when I will arrive'?
English grammar rules require a present tense verb in dependent clauses of time and condition, even when the meaning refers to the future. The word will belongs in the main clause, not inside the clause governed by when, before, or if.
When Alex arrives tomorrow, we will start the meeting.
If it rains this evening, we will cancel the patio dinner.
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