A) Subject + had + past simple
B) Subject + have + past participle
C) Subject + has + past participle
D) Subject + had + past participle

A) Subject + has not/hasn’t + past participle
B) Subject + have not /haven’t + base verb
C) Subject + had not/hadn’t + past participle
D) Subject + had not/hadn’t + past simple

A) Has + subject + past participle
B) Have + subject + past simple
C) Had + subject + past participle
D) Subject + had + past participle

A) cooking
B) has cooked
C) had cooked
D) cooked

A) lost
B) has lost
C) had loose
D) had lost

A) Continuous action in the future.
B) An action that began and ended in the past before another action.
C) A habit in the past.
D) An action in the past without connection to another.

A) Had she ever been to London before moving there?
B) She had ever been to London before moving there?
C) Has she ever been to London before moving there?
D) Did she had ever been to London before moving there?

A) He had went to the store before I called him.
B) By the time we arrived, the show had started.
C) She had finished her homework before dinner.
D) I had never seen such a big dog before.

A) had worked
B) has worked
C) worked
D) working

A) did
B) have done
C) had done
D) doing