Present perfect π

The present perfect connects the past and the now.
Form: have / has + past participle
| Subject | have | Past participle |
| I / you / we / they | have | worked / seen |
| he / she / it | has | worked / seen |
Short forms: I've, she's, we've, haven't, hasn't.
1. Experience: at some time in your life
We do not say when.
I have been to Spain.
Have you ever eaten sushi?
She has never seen snow.
2. Past action with a result now
I have lost my keys. (I don't have them now)
He has broken his arm.
3. A situation that started in the past and continues now
Use for (how long) and since (when it started).
I have lived here for five years.
She has worked at the school since 2020.
4. Just, already, yet
I have just finished. (a moment ago)
Have you finished yet?
Typical words
ever, never, just, already, yet, for, since, so far, this week
β I live here since 2020.
β I have lived here since 2020.