Do not hesitate when using conditional sentences, here you have a chart and links to practise this aspect of the grammar.

Conditional sentences are used to express a result of a certain condition, they can refer to real or imaginary situations.

If is the most used conjunctions in this kind of sentences but you may find other conjunctions such as when, as long as, unless, providing, etc.

There are four different types of conditional sentences in English. Each expresses a different degree of probability that a situation will occur or would have occurred under certain circumstances.

• Zero Conditional Sentences
• First Conditional Sentences
• Second Conditional Sentences
• Third Conditional Sentences

Despite the complex nature of conditional sentences, punctuating them properly is really simple!

Here’s the skinny:

Use a comma after the if-clause when the if-clause precedes the main clause.

If the main clause precedes the if-clause, no punctuation is necessary.