Gerunds and infinitives with stop, try, remember and need

Imagine you and a friend meet on a sunny morning to prepare your bicycles for a long ride. As you check the tires and brakes, your friend hears an unusual rubbing sound near the pedals. You want to suggest two different actions: pausing to inspect the frame, and experimenting with a quick adjustment. English uses the form of the second verb to show that difference immediately. Before you write or speak, you must clarify whether you are naming an interrupted activity, an experiment, a memory, or an obligation.

When two verbs appear together in this structure, the first verb shows the tense and agrees with the subject. In the sentence 'Elena tries checking the pressure,' the verb 'tries' is present tense. If Elena acted yesterday, you change only that first verb to 'tried.' The second verb remains in its chosen pattern: either an -ing word like checking, or a to-infinitive like to check. English grammar guides often call this -ing word a gerund when it acts like a noun phrase. You can connect these patterns with plans for upcoming rides on our page at /grammar/future-plans/.

You can practise this again in Hand in your notice and Conditionals.

The verb stop changes meaning depending on what follows it. When you use stop with an -ing form, you name the activity that finishes. For example, 'I stopped riding' means the ride ended. In contrast, when you use stop with a to-infinitive, the second verb names your purpose for pausing another activity. In 'I stopped to drink water,' the riding paused so you could drink. Pausing to drink does not mean you abandon the bike permanently; it simply explains why you interrupted your progress on the trail.

Choosing between an -ing form and a to-infinitive after try depends on whether you are experimenting with an option or describing effort toward a difficult goal. When you suggest 'Try adjusting the seat,' you offer a possible solution to see if it improves comfort. When you say 'Try to loosen the bolt,' you ask someone to apply physical effort because the bolt might be stuck. Notice that using a to-infinitive does not automatically mean the person failed, just as suggesting an experiment does not guarantee success.

With remember, pay attention to the order of mental awareness and the physical action. Remember followed by an -ing form means you look back at an action that already happened: you hold a mental image of doing it. Remember followed by a to-infinitive means you keep a duty in mind so that you do not forget to act. In a positive past statement like 'I remembered to pack a pump,' the sentence confirms that you completed the necessary chore before you left home.

When you use need with a to-infinitive, the subject performs the action, as in 'The rider needs to tighten the front brake.' When you use need with an -ing form, the subject receives the action instead of doing it. Saying 'The tire needs replacing' means the tire requires someone to replace it, which equals 'needs to be replaced.' Do not treat this as a simple rule separating people from inanimate objects; an object can take a to-infinitive if it does not receive the action, such as 'The bike needs to stay indoors tonight.'

Spelling the -ing forms for these verbs follows three clear patterns that you can apply immediately. For most verbs, simply add -ing to the base form, as in check becoming checking. When a base verb ends in a silent e, drop that letter before adding the suffix, turning ride into riding. For a one-syllable verb ending in a single vowel followed by a single consonant, double that consonant, changing stop into stopping. Finally, keep the letter y before adding -ing, which preserves try as trying.

When you make questions or negative statements, auxiliary verbs like do, does, or did take the tense, returning the first verb to its base form. The second verb never changes its pattern. Consider the meaningful contrast between two negative statements: 'I did not remember to call the shop' reports that a required task was omitted. In contrast, 'I do not remember calling the shop' describes the absence of a memory. In that second sentence, you may or may not have placed the phone call; you simply have no recollection of it.

Use this reference table to evaluate the eight combinations side by side. Each pair presents a clear decision between two distinct ideas: ending an action versus pausing for a purpose, testing a solution versus making an effort, recalling a past experience versus completing a duty, and performing a task versus needing attention from someone else. Review the decision cue in the rightmost column whenever you hesitate between an -ing form and a to-infinitive.

Learners often mix forms by combining to with an -ing word or omitting the marker completely. Writing 'stop to riding' creates an ungrammatical blend; you must choose either 'stop riding' to end the ride or 'stop to ride' if you pause another action to get on your bike. Similarly, 'remember pack' drops the necessary infinitive particle, whereas 'remember to pack' restores standard English. Another common error is 'the tire needs replace,' which lacks both the passive -ing form and the passive infinitive 'needs to be replaced.'

Read this conversation between two cycling partners, Maya and David, as they inspect their equipment before an afternoon ride. Notice how their choice of verb form conveys practical advice and reminders. David focuses on solving a mechanical issue, while Maya tracks supplies and schedules. Each line demonstrates how choosing between an -ing form and a to-infinitive changes what the speaker communicates during a real task.

In connected natural speech, the word to is rarely pronounced with an emphatic vowel. Speakers reduce it to a weak sound like /tə/. In contrast, the suffix -ing carries a distinct nasal ending /ɪŋ/ that remains audible even when spoken quickly. When listening to fast instructions, listen for whether the verb is followed by this quick weak syllable or an -ing ending. You can practice related conversational listening on our audio lessons at /micro-listenings/1-2/ and /micro-listenings/2-2/.

Now that you have explored all four verbs, practice recalling their patterns without looking back at the reference table. Start by deciding what idea you want to express in your own daily routines. If you want to talk about taking a break from your computer screen, you can say 'I stopped working.' If you want to mention pausing your work to stretch your legs, choose 'I stopped to stretch.' Both sentences are fully grammatical, but your communicative goal decides which form fits your intended meaning.