The term conditional refers to any sentence which contains an if clause and a main / result clause. There are four conditionals in English. The table below shows the four types of conditionals, conditional sentences, form and uses.
|Type zero||If you heat ice, it melts.||If + present simple, present simple||General or scientific facts|
|Type 1||If you don't go to bed now, you will be tired in the morning.||If + present simple, will + bare infinitive||Real or likely situations in the present or future. It can be used to express a variety of functions,e.g. a threat, an offer, a warning,etc.|
|Type 2||If I were you, I would eat less chocolate.||If + past simple, would + bare infinitive||impossible or unreal situations|
|Type 3||If I had gone to the meeting, I would have met Tim.||If + past perfect, would/ wouldn't + have + past participle||Events in the past that cannot be changed. Conditional type 3 is especially used to express "regret"|
|Mixed Conditional||If I had taken my friend's advice, I wouldn't have this serious problem at work.||Conditional type 3 structure, conditional type 2 stucture||A past condition with a present result|