Grammar

Question 1

0 conditional

Answer 1

Present + present
If I heat the water, it boils

Question 2

1 conditional - real but not a fact

Answer 2

Present, will + infinitive

Question 3

2 conditional - unreal

Answer 3

Past simple, would + infinitive

Question 4

3 conditional- hypothetical

Answer 4

Had + past participle, would HAVE + past participle

Question 5

Mixed 1 -

Answer 5

Had + past participle, would + infinitive

Question 6

Mixed 2 - past consequences of a present situation

Answer 6

Past simple, would + have + past participle