How do we form the Present Perfect?
Positive: I/ we/you/ they + have + past participle (PP) he/she/it + has + past participle (PP)
Negative: I/ we/you/ they + haven't + past participle (PP)
he/she/it + hasn't + past participle (PP)
Questions: Have + I/ we/you/ they + past participle (PP)
Has + he/she/it + past participle (PP)