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

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

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

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

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

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

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

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

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

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