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

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

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

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

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

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

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

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

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

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