English verb conjugation
COULD OPT

Regular verb: opt - opted - opted

Affirmation

Simple form	V-ing form
I could opt you could opt she could opt we could opt you could opt they could opt	I could be opting you could be opting she 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 she 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 she 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 couldn't opt you couldn't opt she couldn't opt we couldn't opt you couldn't opt they couldn't opt	I couldn't be opting you couldn't be opting she couldn't be opting we couldn't be opting you couldn't be opting they couldn't be opting
Perfect	V-ing perfect
I couldn't have opted you couldn't have opted she couldn't have opted we couldn't have opted you couldn't have opted they couldn't have opted	I couldn't have been opting you couldn't have been opting she couldn't have been opting we couldn't have been opting you couldn't have been opting they couldn't have been opting

Interrogative form

Simple form	V-ing form
could I opt? could you opt? could she opt? could we opt? could you opt? could they opt?	could I be opting? could you be opting? could she 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 she 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 she 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
couldn't I opt? couldn't you opt? couldn't she opt? couldn't we opt? couldn't you opt? couldn't they opt?	couldn't I be opting? couldn't you be opting? couldn't she be opting? couldn't we be opting? couldn't you be opting? couldn't they be opting?
Perfect	V-ing perfect
couldn't I have opted? couldn't you have opted? couldn't she have opted? couldn't we have opted? couldn't you have opted? couldn't they have opted?	couldn't I have been opting? couldn't you have been opting? couldn't she have been opting? couldn't we have been opting? couldn't you have been opting? couldn't they have been opting?