plis ngantuk
Present Perfect :
(+) : She has done her homework
(-) : She hasn't done her homework
(?) : Has she done her homework ?

Past Perfect :
She had called the police before I came.
She hadn't called the police before I came.
had she called the police before I came?

Jawabanmu

2014-01-29T19:33:31+07:00
Present Perfect :
(+) S + has/have + V3 + Noun
(--) S + has/have + NOT + V3 + Noun
(?) Has/have + S + V3 + Noun

Past Perfect :
(+) S + had + V3 + Noun
(--) S + had + NOT + V3 + Noun
(?) Had + S + V3 + Noun