We use the zero conditional to talk about things which ... If I drink milk, I get stomach ache. We use the first conditional to talk about things which might happen if an action takes place.

The zero conditional is used to indicate things ... A dog will be friendly with you if you treat it well. The first conditional is required when we talk about future situations that are real ...

Although there are quite a few different ways of forming conditional sentences there are common patterns known as zero, first, second and third conditionals. Refer to an imagined past result of ...