Fill in the blanks with an appropriate verb form. This grammar exercise tests your understanding of conditional verb forms.
In Type 1 conditional, we use a simple present tense in the if clause and will + infinitive in the main clause.
In Type 2 conditional, we use a simple past tense in the if clause and would + infinitive in the main clause.
In Type 3 conditional, we use a past perfect tense in the if clause and would have + past participle in the main clause.
1If you ............... mathematics at school, you wouldn't find statistics so difficult.
Wrong!
Use the past simple "learnt" in the if-clause of a second conditional sentence.
2If you learn a second language, you ............... better career prospects.
Wrong!
Use "will have" in the main clause of a first conditional sentence.
3I will help if she ............... politely.
Wrong!
Use the present simple third-person form "asks" after if in a first conditional sentence.
4The meeting will be postponed if the chairman ............... soon.
Wrong!
Use the present simple negative "doesn't get well" after if in a first conditional sentence.
5Unless you ............... my house, I will have you arrested.
Wrong!
Use the present simple "leave" after unless to express a real future condition.
6He would succeed if he ............... hard enough.
Wrong!
Use the past simple "tried" in the if-clause of a second conditional sentence.
7She would have been let off if she ............... .
Wrong!
Use the past perfect "had apologized" in the if-clause of a third conditional sentence.
8The accident wouldn't have happened if the driver ............... careful.
Wrong!
Use the past perfect "had been" in the if-clause of a third conditional sentence.
9I would wait if I ............... time.
Wrong!
Use the past simple "had" in the if-clause of a second conditional sentence.
10I will visit Japan next month if I ............... the visa.
Wrong!
Use the present simple "get" after if in a first conditional sentence.
11You ............... better if you ate a little food.
Wrong!
Use "would feel" in the main clause of a second conditional sentence.
12If I ............... that she was in hospital, I would have gone to see her.
Wrong!
Use the past perfect "had known" in the if-clause of a third conditional sentence.
Done.
Score: 0/12
Answers
- If you learnt mathematics at school, you wouldn’t find statistics so difficult.
- If you learn a second language, you will have better career prospects.
- I will help if she asks politely.
- The meeting will be postponed if the chairman doesn’t get well soon.
- Unless you leave my house, I will have you arrested.
- He would succeed if he tried hard enough.
- She would have been let off if she had apologized .
- The accident wouldn’t have happened if the driver had been careful.
- I would wait if I had time.
- I will visit Japan next month if I get the visa.
- You would feel better if you ate a little food.
- If I had known that she was in hospital, I would have gone to see her.

