Conditional sentence Cara merubah type 1 ke type 2

Type 1 : if + simple present, simple future
Exm: if i get a money, i will buy a car

Type 2 : if + simple past, past future
Exm: if i got a money, i would buy a car

Type 3 : if past prefect, past perfect future
Exm: if i had gotten a money, i would have buy a car