Conditionals

a) zero conditional: If + Present Simple+ Present Simple

For example:If I don't eat,I get hangry

b) first conditional: If+Present Simple+Will/Won't

For example: If I don't study, I won't pass my exam

c) second conditional: If+ Past Simple + Would/Wouldn't

For example: If I won the lottery, I would travel to Europe

d) third conditional: If+ Past Perfect + Would Have

For example: If I had studied harder, I would have passed the exam