Past simple questions: did and didn't

When you want to know if an action happened in the past, place did at the very start of your question. Follow did with the person or thing doing the action, and then add the base form of your verb. This structure tells the listener immediately that you are asking about a completed event.

Many learners accidentally put an ed ending or an irregular past form inside a question. Remember that did already carries the past time for the entire clause. Because the past marker is already present in did, your main verb must stay in its plain dictionary form without any past endings.

Puedes practicar esto de nuevo en Simple Past Tense: Actions and Past States y Past Simple Verbs: Choose the Right Form.

If you need details such as a time, place, or reason, place a question word before did. Words like what, where, when, why, and how sit at the front of the sentence. The rest of the clause keeps the exact same order: did, followed by the subject, followed by the base verb.

To say that an action did not occur in the past, place did not or the contraction didn't directly after the subject. In everyday spoken and written English, didn't is the standard choice. Both versions show that the event did not happen, while keeping the message polite, clear, and direct.

A common slip in spoken English is keeping an irregular past verb after didn't. When speaking quickly, people sometimes say didn't went or didn't saw. Train your ear to listen for the base verb right after didn't. One past marker is all your sentence needs to be accurate.

When you expect that something happened or want to express mild surprise, you can begin your question with didn't. Place didn't before the subject, and keep the main verb in its base form. This structure asks the listener to confirm information that you believed was already true.

The verb be does not use did for past questions or negatives. Instead, use was for singular subjects like I, he, she, and it, and were for plural subjects and you. Put was or were before the subject in questions, and add not directly after them for negatives.

In casual conversation, native speakers often blend did and you together so they sound like didja or did-joo. The vowel in did can become very short and quiet. To catch these questions, focus on the base verb that follows the pronoun, which usually receives stronger vocal emphasis.