English verb conjugation
COULD LEAVE

Irregular verb: leave - left - left

Affirmation

Simple form	V-ing form
I could leave you could leave she could leave we could leave you could leave they could leave	I could be leaving you could be leaving she could be leaving we could be leaving you could be leaving they could be leaving
Perfect	V-ing perfect
I could have left you could have left she could have left we could have left you could have left they could have left	I could have been leaving you could have been leaving she could have been leaving we could have been leaving you could have been leaving they could have been leaving

Negation

Simple form	V-ing form
I couldn't leave you couldn't leave she couldn't leave we couldn't leave you couldn't leave they couldn't leave	I couldn't be leaving you couldn't be leaving she couldn't be leaving we couldn't be leaving you couldn't be leaving they couldn't be leaving
Perfect	V-ing perfect
I couldn't have left you couldn't have left she couldn't have left we couldn't have left you couldn't have left they couldn't have left	I couldn't have been leaving you couldn't have been leaving she couldn't have been leaving we couldn't have been leaving you couldn't have been leaving they couldn't have been leaving

Interrogative form

Simple form	V-ing form
could I leave? could you leave? could she leave? could we leave? could you leave? could they leave?	could I be leaving? could you be leaving? could she be leaving? could we be leaving? could you be leaving? could they be leaving?
Perfect	V-ing perfect
could I have left? could you have left? could she have left? could we have left? could you have left? could they have left?	could I have been leaving? could you have been leaving? could she have been leaving? could we have been leaving? could you have been leaving? could they have been leaving?

Interro-negative form

Simple form	V-ing form
couldn't I leave? couldn't you leave? couldn't she leave? couldn't we leave? couldn't you leave? couldn't they leave?	couldn't I be leaving? couldn't you be leaving? couldn't she be leaving? couldn't we be leaving? couldn't you be leaving? couldn't they be leaving?
Perfect	V-ing perfect
couldn't I have left? couldn't you have left? couldn't she have left? couldn't we have left? couldn't you have left? couldn't they have left?	couldn't I have been leaving? couldn't you have been leaving? couldn't she have been leaving? couldn't we have been leaving? couldn't you have been leaving? couldn't they have been leaving?