Conditional sentences: zero, first, second and third

conditional

zero conditional

-Conditional clause: If/when/unless+Present simple

-Result clause:Present simpl or modal+base form

First conditional

-Conditional clause:If/unless+Presnt simple

-result clause:Future simple, imperative or modal+base form

second conditional

-conditional clause: If/unless+Present simple

-result clause: would+base form or could/might+base form

Third conditional

-conditional clause: if+Past Perfect Simple

-Result clause: would have,could,might have+ Past participle