English verb conjugation
COULD DISPUTE

Regular verb: dispute - disputed - disputed

Affirmation

Simple form	V-ing form
I could dispute you could dispute she could dispute we could dispute you could dispute they could dispute	I could be disputing you could be disputing she could be disputing we could be disputing you could be disputing they could be disputing
Perfect	V-ing perfect
I could have disputed you could have disputed she could have disputed we could have disputed you could have disputed they could have disputed	I could have been disputing you could have been disputing she could have been disputing we could have been disputing you could have been disputing they could have been disputing

Negation

Simple form	V-ing form
I couldn't dispute you couldn't dispute she couldn't dispute we couldn't dispute you couldn't dispute they couldn't dispute	I couldn't be disputing you couldn't be disputing she couldn't be disputing we couldn't be disputing you couldn't be disputing they couldn't be disputing
Perfect	V-ing perfect
I couldn't have disputed you couldn't have disputed she couldn't have disputed we couldn't have disputed you couldn't have disputed they couldn't have disputed	I couldn't have been disputing you couldn't have been disputing she couldn't have been disputing we couldn't have been disputing you couldn't have been disputing they couldn't have been disputing

Interrogative form

Simple form	V-ing form
could I dispute? could you dispute? could she dispute? could we dispute? could you dispute? could they dispute?	could I be disputing? could you be disputing? could she be disputing? could we be disputing? could you be disputing? could they be disputing?
Perfect	V-ing perfect
could I have disputed? could you have disputed? could she have disputed? could we have disputed? could you have disputed? could they have disputed?	could I have been disputing? could you have been disputing? could she have been disputing? could we have been disputing? could you have been disputing? could they have been disputing?

Interro-negative form

Simple form	V-ing form
couldn't I dispute? couldn't you dispute? couldn't she dispute? couldn't we dispute? couldn't you dispute? couldn't they dispute?	couldn't I be disputing? couldn't you be disputing? couldn't she be disputing? couldn't we be disputing? couldn't you be disputing? couldn't they be disputing?
Perfect	V-ing perfect
couldn't I have disputed? couldn't you have disputed? couldn't she have disputed? couldn't we have disputed? couldn't you have disputed? couldn't they have disputed?	couldn't I have been disputing? couldn't you have been disputing? couldn't she have been disputing? couldn't we have been disputing? couldn't you have been disputing? couldn't they have been disputing?