First Conditional
Second Conditional
Third Conditional
ought to /shouldn't /must/mustn't
100

If we leave now, we will be / are early.

If we leave now, we will be early.

100

If she studies/ studied more, she'd get better grades. 

If she studied more, she'd get better grades.

100

If she'd won the game, she would make / would have made a lot of money.

If she'd won the game, she would have made a lot of money.

100

You ought to /shouldn't exercise often in order to stay healthy.

You ought to exercise often in order to stay healthy.

200

I will call/ call if I will need/ need any help

I will call if I need any help.

200

If they have/had more money, they'd buy a large house

If they had more money, they'd buy a large house. 

200

If we'd known the answer, we would have told / would tell you. 

If we'd known the answer, we would have told you. 

200

You must/mustn't brush your teeth every morning and night.

You must brush your teeth every morning and night.

300

If he won't eat/doesn't eat breakfast, he will feel/ feels tired.

If he doesn't eat breakfast, he will feel tired.
300

If you run/ran every day, you'd feel stronger

If you ran every day, you'd feel stronger

300

If I'd seen you at the store, I would have said/ I would say hello. 

If I'd seen you at the store, I would have said hello.

300

You ought to/ shouldn't eat too much junk food. 

You shouldn't eat too much junk food.

400

If she exercises, she _____ (feel) happier.

If she exercises, she will feel happier. 

400

I'd be happier if I ____ (live) by the beach

I'd be happier if I lived by the beach. 

400

She would have ____ (help), if i'd asked her to. 

She would have helped if i'd asked her to.

400

You must / mustn't interrupt the teacher during class.

You mustn't interrupt the teacher during class.

500

You ______ (be) sick if you eat too many sweets. 

You will be sick if you eat too many sweets. 

500

You'd be more productive if you ___ (play) fewer video games.

You'd be more productive if you played fewer video games. 

500

If they'd bought tickets, they ___ (attend) the concert.

If they'd bought tickets, they would have attended the concert.

500

You should / shouldn't forget to clean up after yourself

You shouldn't forget to clean up after yourself