Answer:
Conditional Sentences are also known as conditional Clauses or <em>If</em> Clauses. They are used to express that the action in the main clause (without <em>if</em>) can only take place if a certain condition (in the clause with<em> if)</em> is fulfilled. There are three types of Conditional Sentences.
Conditional sentences or conditional clauses or <em>IF</em> clauses are used to express that a certain action (in clause without if) can take place only if condition in (<em>if</em> clause) is fulfilled.
Explanation:
There are three main types of conditional sentences based on the tense of if clause (simple present, simple past, past perfect).
Type 1 Conditional Sentence:
In this type, it is possible and very likely that condition will be fulfilled.
In this type, if is followed by simple present tense, and then result of that condition is presented in future tense.
If + <u>simple present</u> , <u>future tense</u> e.g if you work hard, you will succeed, if you are confident, you will achieve your targets.
Type 2 Conditional Sentence:
In this type the condition is although possible but very unlikely to be fulfilled.
If +<u>simple past</u> , <u>would (first form of verb)</u> e.g If he earned large amount of money, he would help you.
Type 3 Conditional Sentence:
In this type the <em>if </em>condition is from past which has not been fulfilled.
If + <u>past perfect</u> , <u>would have+ third form</u> e.g if he had worked hard, he would have succeeded.
