verbs
Past simple/Past continuous
Past simple/past perfect
Past Perfect/ Present Perfect ?
100

"to do" in past perfect

had done

100

I ____________ (watch) the show when the pizza finally _________ (arrive).

I was watching the show when the pizza finally arrived.

100

She _______ in Sweden before she _______ to Norway (live/go).

She had lived in Sweden before she went to Norway.

100

__________ fifteen minutes before an exam? (you/ever/ study)

 Have you ever studied fifteen minutes before an exam? 

200

"to know" in past perfect

had known

200

They __________ to the beach when the police ___________ them for speeding. (drive, stop)

They were driving to the beach when the police stopped them for speeding. 

200

You _____ Mandarin before you ______ to China (study/move).

You had studied Mandarin before you moved to China.

200

___________  to London before you went there in 2015?

Had you ever been to London before you went there in 2015? 

300

"to fly" in past perfect

had flown

300

I ___________ my wallet while we _________to the supermarket. (lose, walk) 

I lost my wallet while we were walking to the supermarket.

300

Before the students ________ to write, the teacher _________ their mobile phones (start/collect).

Before the students started to write, the teacher had collected their mobile phones.

300

 __________ the instructions before you solved the exam? (you/to read)

Had you read the instructions before you solved the exam? 

400

"to forget " in past perfect

had forgotten

400

My mother _____________ when the fire alarm suddenly __________ off. (sleep, go)

My mother was sleeping when the fire alarm suddenly went off.

400

I________what my mother___________.  (could not remember, say)

I  couldnĀ“t remember what my mother had said.

400

What is the worst experience you __________? (ever/ have) 

What is the worst experience you _______? (ever/ have)

500

"to sweep" in past perfect

had swept

500

He ____________ the bottle of wine on the floor while he was ____________ dinner. (drop, cook) 

He dropped the bottle of wine on the floor while he was cooking dinner. 

500

When the people________at the cinema the film_________already______.  (Arrive, start)

When the people arrived at the cinema the film had already started.

500

What is the best experience you _______? (ever/have) 

What is the best experience you have ever had?