Look at the sentence

if you work hard, you will get money
 this called conditional clauses

if you work hard=conditional
you will get money=clause

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Clause: A group of words with a subject and a predicate is known as clause. It is usually a part of a sentences. Ex: Shana talks very softly.
 :  1.Conditionals sentences are also known as if clause.
                        2.Conditional sentences are used to express the fact that certain things will happen only if some conditional are fulfilled. Ex: I like this coat.If it were cheaper,I would buy it.