Conditional Sentences

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 four types of conditional sentences.

It’s important to use the correct structure for each of these different conditional sentences because they express varying meanings.
Pay attention to verb tense when using different conditional modes.
Use a comma after the if-clause when the if-clause precedes the main clause.