English verb conjugation
COULD OPT

Regular verb: opt - opted - opted

Affirmation

Simple form	V-ing form
I could opt you could opt he could opt we could opt you could opt they could opt	I could be opting you could be opting he could be opting we could be opting you could be opting they could be opting
Perfect	V-ing perfect
I could have opted you could have opted he could have opted we could have opted you could have opted they could have opted	I could have been opting you could have been opting he could have been opting we could have been opting you could have been opting they could have been opting

Negation

Simple form	V-ing form
I could not opt you could not opt he could not opt we could not opt you could not opt they could not opt	I could not be opting you could not be opting he could not be opting we could not be opting you could not be opting they could not be opting
Perfect	V-ing perfect
I could not have opted you could not have opted he could not have opted we could not have opted you could not have opted they could not have opted	I could not have been opting you could not have been opting he could not have been opting we could not have been opting you could not have been opting they could not have been opting

Interrogative form

Simple form	V-ing form
could I opt? could you opt? could he opt? could we opt? could you opt? could they opt?	could I be opting? could you be opting? could he be opting? could we be opting? could you be opting? could they be opting?
Perfect	V-ing perfect
could I have opted? could you have opted? could he have opted? could we have opted? could you have opted? could they have opted?	could I have been opting? could you have been opting? could he have been opting? could we have been opting? could you have been opting? could they have been opting?

Interro-negative form

Simple form	V-ing form
could I not opt? could you not opt? could he not opt? could we not opt? could you not opt? could they not opt?	could I not be opting? could you not be opting? could he not be opting? could we not be opting? could you not be opting? could they not be opting?
Perfect	V-ing perfect
could I not have opted? could you not have opted? could he not have opted? could we not have opted? could you not have opted? could they not have opted?	could I not have been opting? could you not have been opting? could he not have been opting? could we not have been opting? could you not have been opting? could they not have been opting?