❌ Present Perfect Negative Sentences: Haven't / Hasn't

Subject + have/has + not + Past Participle
• I have not (haven't) eaten.
• She has not (hasn't) finished.
• They have not (haven't) arrived.

1. I haven't seen that movie yet.
2. She hasn't finished her homework.
3. They haven't arrived at the party.
4. He hasn't called me back.
5. We haven't decided where to go.