Zero Condicional V. present - V. present.- If you heat water, it boils. V. present - V. Future Simple.- If you heat water, it will boil. First Conditional. Present - Future. - If you heat water, it will boil. Past - Future. - If you heated water, it will boil. Second Conditional Past S. - Conditional Present Simple (Would+Infinitive) Would water boil if you heated it? Past Perfect. - Conditional Perfect (Would have+ past part). Would water have boiled if you had heated it?. Third Conditional Past Perfect - Conditional perfect. If you had heated water, it would have boiled. Present - Conditional present simple. If you don´t heat water, it wouldn´t boil.
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