Form: Present perfect simple
Affirmative: I/you/we/they have + V3 · He/she/it has + V3
✅ I've finished. · ✅ She has found a job.
Negative: haven’t / hasn’t + V3
❎ I haven’t seen him yet.
Questions: Have/Has + subject + V3?
⟲ Have you met her? · Has he called?
Short answers: Yes, I have. / No, she hasn’t. (Not: “Yes, I’ve.”)
Short forms: ’ve, ’s, haven’t, hasn’t