Question

Когда пишется did а когда didn`t

Answer 1

Did допоміжне дієсло в минулому часі і означає  то саме що і dо .Вживається у Past Simple (Past Indefinite) / Минулий простий (неозначений) час.didn`t це те саме did але просто у заперечній формі.Схема така:Підмет + Присудок + Доповнення.
Ну наприклад:
1)I did not see him yesterday. або можна сказати те саме речення ось так "І  .didn`t see him yesterday. (заперечне речення)
2)Did we have fruits?(питальне речення)

Answer 2

did is the past tense form of the verb "do," while didn't is the contraction of "did not." They are used in different contexts in English.

When to use "did":

- "did" is used as the past tense of the verb "do" when forming questions and negative statements in the past simple tense. - Examples: - Did you go to the store yesterday? [[7]](https://cambridge.ua/blog/do-did-does-otlychyya-y-pravyla-yspolzovanyya/) - Did they finish their homework? [[7]](https://cambridge.ua/blog/do-did-does-otlychyya-y-pravyla-yspolzovanyya/) - She did not attend the meeting. [[7]](https://cambridge.ua/blog/do-did-does-otlychyya-y-pravyla-yspolzovanyya/) - We did not see the movie. [[7]](https://cambridge.ua/blog/do-did-does-otlychyya-y-pravyla-yspolzovanyya/)

When to use "didn't":

- "didn't" is the contraction of "did not" and is used in negative statements in the past simple tense. - Examples: - I didn't eat breakfast this morning. - They didn't win the game. - He didn't call me back. Remember that "did" and "didn't" are used specifically in the past simple tense. In other tenses, different forms of the verb "do" are used.