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

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

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

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

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

A) Has she ever been to London before moving there?
B) Had she ever been to London before moving there?
C) Did she had 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) By the time we arrived, the show had started.
C) He had went to the store before I called him.
D) I had never seen such a big dog before.

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

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