Conditionals: Are complex sentences forming a hypothesis and a consequence.
Zero conditional: It's used to speak about general truth, scientific facts and things wich are always right
Present simple en los dos (if/consequence) He/she/it-->s/es/ies
First Conditional: it's used to express siyuations wich are probably to happen in the rpesen or in the future, warnigns advices.
Presen simple y will (if/consequence)
Second Conditional: It's used to talk about unreal or imaginary situations, actions wich are unprobably to happen.
Past simple + would or could