English verb conjugation
COULD OVERTURE

Regular verb: overture - overtured - overtured

Affirmation

Simple form	V-ing form
I could overture you could overture he could overture we could overture you could overture they could overture	I could be overturing you could be overturing he could be overturing we could be overturing you could be overturing they could be overturing
Perfect	V-ing perfect
I could have overtured you could have overtured he could have overtured we could have overtured you could have overtured they could have overtured	I could have been overturing you could have been overturing he could have been overturing we could have been overturing you could have been overturing they could have been overturing

Negation

Simple form	V-ing form
I couldn't overture you couldn't overture he couldn't overture we couldn't overture you couldn't overture they couldn't overture	I couldn't be overturing you couldn't be overturing he couldn't be overturing we couldn't be overturing you couldn't be overturing they couldn't be overturing
Perfect	V-ing perfect
I couldn't have overtured you couldn't have overtured he couldn't have overtured we couldn't have overtured you couldn't have overtured they couldn't have overtured	I couldn't have been overturing you couldn't have been overturing he couldn't have been overturing we couldn't have been overturing you couldn't have been overturing they couldn't have been overturing

Interrogative form

Simple form	V-ing form
could I overture? could you overture? could he overture? could we overture? could you overture? could they overture?	could I be overturing? could you be overturing? could he be overturing? could we be overturing? could you be overturing? could they be overturing?
Perfect	V-ing perfect
could I have overtured? could you have overtured? could he have overtured? could we have overtured? could you have overtured? could they have overtured?	could I have been overturing? could you have been overturing? could he have been overturing? could we have been overturing? could you have been overturing? could they have been overturing?

Interro-negative form

Simple form	V-ing form
couldn't I overture? couldn't you overture? couldn't he overture? couldn't we overture? couldn't you overture? couldn't they overture?	couldn't I be overturing? couldn't you be overturing? couldn't he be overturing? couldn't we be overturing? couldn't you be overturing? couldn't they be overturing?
Perfect	V-ing perfect
couldn't I have overtured? couldn't you have overtured? couldn't he have overtured? couldn't we have overtured? couldn't you have overtured? couldn't they have overtured?	couldn't I have been overturing? couldn't you have been overturing? couldn't he have been overturing? couldn't we have been overturing? couldn't you have been overturing? couldn't they have been overturing?