CONDITIONALS
Zero conditional
real facts- scientific facts
you use IF
in present simple
if the water boils at 100c, it evaporates
second conditional
imaginary result
past simple and would
if i won the tinka, i would travel around the world
First conditional
present simple and future
future
if you study for the exam, you will will pass it
regrets and past conditional
past perfect + would have+verb(past participle)
if i had studied more for the exam, i would have passed it