When it comes to writing, proper use of grammar is required; otherwise, it won't be as effective as it could be, and on top of that, it would make the text full of errors. Try this simple past perfect tense quiz and see if you have good enough knowledge of the same.
Met, had taken
Had met, took
Had taken, met
Took, had met
Never ate, had come
Came, had never eaten
Had come, never ate
Had never eaten, came
Didn't have, had lost
Hadn't had, lost
Didn't lose, hadn't had
Hadn't lost, didn't have
Finished, had turned
Turned, had finished
Had finished, turned
Had turned, finished
Was, had known
Had known, was
Knew, had been
Had been, knew
Had understood, read
Read, had understood
Had read, understood
Understood, had read
Had arrived, forgot
Arrived, had forgotten
Forgot, had arrived
Had forgotten, arrived
Had studied, graduated
Studied, graduate
Has studied, had graduated
Had studied, has graduated
Sleep, forgot
Slept, had forgotten
Slept, forget
Had gone, received
Gone, receive
Has gone, received
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