If Clauses

If clauses are usually used to talk about uncertain events and situations. They often refer to a condition – something which must happen first, so that something else can happen.

  • If you love me, I will love you.
  • If you study well, you will pass the exam.
  • If you marry me, I will make you my queen.
  • If you don’t hurry up, you will be late.

Clauses of this kind are often called conditional clauses. There are four main types of conditional clauses in English. They are:

  1. Zero conditional
  2. Type 1 conditional
  3. Type 2 conditional
  4. Type 3 conditional

Position of an if clause

An if-clause can come at the beginning or end of a sentence. When an if-clause begins a sentence, we use a comma to separate it from the rest of the sentence.


  • I will phone you if I have time.
  • If I have time, I will phone you.

Leaving out If

In a formal or literary style if can be dropped and an auxiliary verb put before the subject. This is common with had, should and were.

  • Were I you I would accept the offer. (= If I were you I would accept the offer.)
  • Had he not received her help he wouldn’t have become a millionaire. (= If he had not received…)

Manjusha Nambiar

Hi, I am Manjusha. This is my blog where I give English grammar lessons and worksheets.

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