Conditionals: If-clauses

There are three types of if-clauses and there is also a zero type.

Type 0

Something that is always true (General truths, scientific facts).

When/If you heat water up to 100 C, it boils.

If he studies, he will pass the exam.

First Conditional - Song - https://lyricstraining.com/en/play/bruno-mars/count-on-me-lyrics/HDLkEvrgqD#ibw

If you were a dog, you would bark.

Mixed: https://www.liveworksheets.com/fp182cd

If he had studied, he would have passed the exam. Now it's too late.