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

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

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

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

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

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

A) Did 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) She had ever been to London before moving there?

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

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

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