Search concise B2 First grammar, vocabulary, functional phrases and exam strategy — without leaving the course to hunt through past lessons.
What it is
Two ways of talking about the past. The present perfect links a past action to now; the past simple puts the action in a finished time.
Form
| Type | Pattern | Model sentence |
|---|---|---|
| Positive | subject + have/has + past participle | They have finished the report. |
| Negative | subject + haven't/hasn't + past participle | They haven't finished the report. |
| Question | Have/Has + subject + past participle? | Have they finished the report? |
| Short answer | Yes, subject + have/has. / No, subject + haven't/hasn't. | Yes, they have. / No, they haven't. |
| Past simple | subject + V2 (+ finished time) | They finished the report on Friday. |
Past simple questions and negatives use did: Did they finish? / They didn't finish.
Use it when
Examples
Watch out
I have seen him yesterday.
I saw him yesterday.
A finished time word forces the past simple.
How long do you live here?
How long have you lived here?
A situation that started in the past and continues needs the present perfect.
Remember
Say when → past simple. Don't say when → present perfect.
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