Zero Conditional: TRUTH / FACT
SIMPLE PRESENT - SIMPLE PRESENT
If you put water to heat, it boils.
First Conditional: LIKELY
SIMPLE PRESENT - WILL INF
If you call the police, they will come.
Second Conditonal: UNLIKELY
SIMPLE PAST - WOULD INF
I would try my clothes if were alone.
Third Conditional: IMPOSSIBLE - REGRETS
PAST PERFECT (HAD + PP) - WOULD HAVE PP
If I had done my homework, I would have passed.