would, was going to and past continous
was (just) about to and was/were to
abilities in the past and the future
habitual actions in the present and past
100

When my father bought that painting, he didn't know that the artist ______ become famous

When my father bought that painting, he didn't know that the artist would become famous

100

I turned off my mobile phone because the film was ___ to start

I turned off my mobile phone because the film was about to start

100

She __________ (walk) before she started kindergarten.

She could walk before she started kindergarten.

100

My father ___________ eat vegetable as a kid, so he is always healthy.

USED TO / WOULD
200

I didn't post the letter to Kate because I was _____ to see her the following weekend

I didn't post the letter to Kate because I was going to see her the following weekend

200

I was ____ to turn and walk away when she said, “I have a grandson your age.”

I was about to turn and walk away when she said, “I have a grandson your age.”

200

The burglar _____________ get in through the bathroom window even though it was locked.

MANAGED TO / WAS ABLE TO

200

I __________ hate vegetables, but now I like them.

USED TO

300

I didn’t want a full-time job because I (start) university in the autumn.

I didn't want a full-time job because I was going to start university in the autumn

300

We ran into the cinema and got to our seats just as the film (start)

We ran into the cinema and got to our seats just as the film was about to start

300

She ____________ watch the match because she was working.

COULDN'T / DIDN'T MANAGE TO / WASN'T ABLE TO
300

I didn't ____________ live in this city.

USE TO

400

He gave me Tracy's birthday present because I (see) her the next day for lunch

He gave me Tracy's birthday because I was seeing her the next day for lunch 

400

We (watch) a movie when someone (call) me on the phone

We were about to watch a movie when someone called me on the phone

400

I have to go now, but I _____________ help you with the homework later!

CAN

400

My brother ___________ (always/leave) his clothes on the floor. It's so annoying!

IS ALWAYS LEAVING

500

When I first met Fiona, I had no idea that the encounter (change) my life forever

When I first met Fiona, I had no idea that the encounter would change my life forever

500

I (take) the bus when I (discover) it was the wrong stop

I was about to take the bus when I discovered it was the wrong stop

500

Once you try pistaccio ice-cream, you __________ order any other flavour!

WON'T BE ABLE TO

500

I _____________ (play) the piano for 2 years until I decided it wasn't my cup of tea.

PLAYED

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