Past Perfect

Past Perfect

USE
- past action before another past action [1]
- before a specific time in the past [2]

IE
[+] He had painted the room..
[-] I had not painted the room..
[?] Had I painted the room.. ?

[1] After he had done the homework he watched TV
[1] I had painted the room when she came in
[2] Yesterday by 9 o'clock I had finished my homework

COMMON WORDS
- by, by the time, before, after, just, when

COMPARISON

Present Simple - Present Perfect
IE: Her sister is not at home now. She has gone to school

Past Simple - Past Perfect
Her sister was not at home yesterday. She had gone to school