SIMPLE PRESENT VS. PRESENT CONTINUOUS
PAST SIMPLE VS. PAST CONTINUOUS
PRESENT PERFECT SIMPLE AND CONTINUOUS
CONDITIONALS
RELATIVE CLAUSES
100

Helen ... (live) in the city centre.

Helen lives in the city centre.

100

I ... (watch) TV when the phone ... (ring). 

I was watching TV when the phone rang.

100

He ... (paint) three rooms so far.

He has painted three rooms so far.

100

If you ____ (heat) water, it ____ (boil).

If you heat water, it boils.

100

That's the device ______ she invented.

That's the device that/which she invented.

200

We ... (go) to the science museum next week.

We’re going to the science museum next week.

200

I ... (always/ visit) my grandparents in my summer holidays.

I always visited my grandparents in my summer holidays.

200

He ... (paint) all morning.

He has been painting all morning.

200

If it ____ (not rain), we ____ (go) to the river.

If it does not rain, we will go to the river.

200

William Gillbert was the first person ______ investigated electricity scientifically.

William Gillbert was the first person who/that investigated electricity scientifically.

300

This weekend, we ... (study) the nervous system.

This weekend, we’re studying the nervous system.

300

He was playing football ... his father was washing the car.

He was playing football while his father was washing the car.

300

I ... (lose) my key. Can you help me find it?

I have lost my key. Can you help me find it?

300

If I ____ you, I ____ the truth. (be/ tell)

If I were you, I would tell the truth.

300

Regensburg, _____ I studied, is an amazing place to live.

Regensburg, where I studied, is an amazing place to live.

400

She ... (get) more and more worried about her health.

She’s getting more and more worried about her health.

400

He ... (meet) his wife while he ... (live) in America.

He met his wife while he was living in America. 

400

This is the fourth time I ... him on the street. (meet)

This is the fourth time I have met him on the street.

400

If I wanted a coffee, I ________ for one (ask).

If I wanted a coffe, I would have asked for one.

400

David, ____ parents don't want him to go to the party, is very upset.

David, whose parents don't want him to go to the party, is very upset.

500

He ... (always/ tell) me what to do!

He’s always telling me what to do!

500

He ... (open) the door, ... (move) around and ... (scream) when he ... (see) her. 

He opened the door, moved around and screamed when he saw her.

500

I ... (see) you reading this book for months. How long ... (you/ read) it?

I have seen you reading this book for months. How long have you been reading it?

500

If she ______interested in astronomy, she would be here with us tonight (be).

If she was interested in astronomy, she would be here with us tonight.

500

December 24th, _____ Jesus was born, is remembered nowadays.

December 24th, when Jesus was born, is remembered nowadays.

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