Question

put the verbs in brackets into the correct tense.What type conditional  is each sentence?
1.if you (to boil) water.it (to turn) to steam
2.if i (to be) free yesterday.i (to join) you
3.if you (to study) hard.you(to pass) the exam
4.if i (to be) rich.i (go) on a cruise around the world

Answer 1

Boil...turns - zero conditional
Had been free...would have joint - third conditional
Study...will pass - first conditional
Was...would go - second conditional