| Positive | Negative | Question | |
|---|---|---|---|
| I | I'm working | I'm not working | Am I working? |
| he / she / it | She's working | She isn't working | Is she working? |
| you / we / they | They're working | They aren't working | Are they working? |
In speech the verb be is almost always contracted: I'm, she's, they're. Both negatives are common: she isn't working and she's not working are equally correct.