Tenses ( present perfect )
Present perfect Declarative - subject + has/have + V3 I have written a book. He has drunk the juice. Yes/no - has/have + subject + V3 Have I written a book ? Has he drunk the juice ? W.h. word question - w.h. word + has/have + subject + V3 What have I written ? When has he drunk the juice ? Negative - subject + has/have + not + V3 ...