English verb conjugation
COULD DECLINE

Regular verb: decline - declined - declined

Affirmation

Simple form	V-ing form
I could decline you could decline she could decline we could decline you could decline they could decline	I could be declining you could be declining she could be declining we could be declining you could be declining they could be declining
Perfect	V-ing perfect
I could have declined you could have declined she could have declined we could have declined you could have declined they could have declined	I could have been declining you could have been declining she could have been declining we could have been declining you could have been declining they could have been declining

Negation

Simple form	V-ing form
I could not decline you could not decline she could not decline we could not decline you could not decline they could not decline	I could not be declining you could not be declining she could not be declining we could not be declining you could not be declining they could not be declining
Perfect	V-ing perfect
I could not have declined you could not have declined she could not have declined we could not have declined you could not have declined they could not have declined	I could not have been declining you could not have been declining she could not have been declining we could not have been declining you could not have been declining they could not have been declining

Interrogative form

Simple form	V-ing form
could I decline? could you decline? could she decline? could we decline? could you decline? could they decline?	could I be declining? could you be declining? could she be declining? could we be declining? could you be declining? could they be declining?
Perfect	V-ing perfect
could I have declined? could you have declined? could she have declined? could we have declined? could you have declined? could they have declined?	could I have been declining? could you have been declining? could she have been declining? could we have been declining? could you have been declining? could they have been declining?

Interro-negative form

Simple form	V-ing form
could I not decline? could you not decline? could she not decline? could we not decline? could you not decline? could they not decline?	could I not be declining? could you not be declining? could she not be declining? could we not be declining? could you not be declining? could they not be declining?
Perfect	V-ing perfect
could I not have declined? could you not have declined? could she not have declined? could we not have declined? could you not have declined? could they not have declined?	could I not have been declining? could you not have been declining? could she not have been declining? could we not have been declining? could you not have been declining? could they not have been declining?