Conditional Sentences are also known as Conditional Clauses or If Clauses. They are used to express that the action in the main clause (without if) can only take place if a certain condition (in the clause with if) is fulfilled. There are three types of Conditional Sentences.
Example :
First if conditional : If I have enough money, I will go to New Zealand.
Second if conditional : If I had much money, I would buy a sport car.
Third if conditional : If you had remembered to invite me, I would have attended your party.
Sumber : https://www.ego4u.com/en/cram-up/grammar/conditional-sentences
