GERUND V INFINITIVE
HAVE TO / MUST / CAN
Prepositions
1st and 2nd conditional
Present Perfect vs Past Simple
100

I enjoy ____ (play) football

I enjoy (playing) football

100

You ___ wear a seat belt in a car.

You must wear a seat belt in a car. (obligation)

100

My birthday is ___ July.

In

100

If it rains tomorrow, I ___ (stay) home.

If it rains tomorrow, I will (stay) home.

100

I ___ (visit) Brazil last year.

I visited Brazil last year.

200

She decided ___ (study) abroad.

She decided to study abroad.

200

You look tired. You ___ go to bed earlier.  

You look tired. You should go to bed earlier. (advice)

200

We arrived ___ the airport at 8 p.m.

We arrived at the airport at 8p.m.
200

If I ___ (be) rich, I would travel around the world.

If I were rich, I would travel around the world.

200

She ___ never ___ (eat) sushi.

She has never eaten sushi.

300

He is interested in ___ (learn) French.

He is interested in learning French.

300

You ___ smoke in the hospital. (prohibition)

You can't smoke in the hospital. (prohibition)

300

She is very good ___ playing tennis.

she is very good at playing tennis.

300

If she studies hard, she ___ (pass) the exam.

If she studies hard, she will (pass) the exam.

300

We ___ (see) that movie yesterday.

We saw that movie yesterday.

400

We stopped ___ (buy) some water on our way home.

We stopped to buy some water on our way home.

400

I ___ finish my homework yesterday.

I had to finish my homework yesterday. (past obligation)

400

I've been waiting ___ you for an hour.

I've been waiting for you for an hour.

400

Correct the mistake: 'If I will see him, I will tell him.'

Correct the mistake: 'If I see him, I will tell him.'

400

I ___ (live) here for five years, and I still live here.

I have lived here for five years, and I still live here.

500

Explain the difference: 'I stopped smoking' vs. 'I stopped to smoke.'

I stopped smoking - Action ended

I stopped to smoke - I stopped, and smoked

500

Explain the difference between 'You mustn't go' and 'You don't have to go.'

You mustn't - You should not (prohibition)

You don't have to - It's optional 

500

Correct all three mistakes: 'I'm interested on science, afraid from spiders, and responsible of the project.'

in, of, for

500

Explain the difference: 'If I win the lottery, I'll buy a house' vs. 'If I found all of Germany's gold, I'd buy a house.'

If i win the lottery, i'll buy a house - I expect to win the lottery

If I found all of Germany's gold - hypothetical

500

Correct both mistakes: 'I have seen him yesterday. He has arrived two hours ago.'

Correct both mistakes: 'I saw him yesterday. He arrived two hours ago.'

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