English Conditionals – Quick Guide

Conditional sentences let us talk about cause → effect. They pair an if‑clause with a main clause to express truths, possibilities, hypotheticals or regrets. Below is a snapshot of the five patterns you’ll master in this mini‑course.

Type Form (if‑clause ➔ main clause) Typical Use
Zero present simple ➔ present simple Facts & rules: If water boils, it turns into steam.
First present simple ➔ will + base Real future: If it rains, we’ll cancel.
Second past simple ➔ would + base Unreal present/future: If I won, I’d travel.
Third past perfect ➔ would have + V3 Unreal past: If you had called, I’d have helped.
Mixed Blend of 2+ forms Past cause → present result: If I had studied, I would be calm now.