English verb conjugation
COULD DEGENERATE

Regular verb: degenerate - degenerated - degenerated

Affirmation

Simple form	V-ing form
I could degenerate you could degenerate she could degenerate we could degenerate you could degenerate they could degenerate	I could be degenerating you could be degenerating she could be degenerating we could be degenerating you could be degenerating they could be degenerating
Perfect	V-ing perfect
I could have degenerated you could have degenerated she could have degenerated we could have degenerated you could have degenerated they could have degenerated	I could have been degenerating you could have been degenerating she could have been degenerating we could have been degenerating you could have been degenerating they could have been degenerating

Negation

Simple form	V-ing form
I couldn't degenerate you couldn't degenerate she couldn't degenerate we couldn't degenerate you couldn't degenerate they couldn't degenerate	I couldn't be degenerating you couldn't be degenerating she couldn't be degenerating we couldn't be degenerating you couldn't be degenerating they couldn't be degenerating
Perfect	V-ing perfect
I couldn't have degenerated you couldn't have degenerated she couldn't have degenerated we couldn't have degenerated you couldn't have degenerated they couldn't have degenerated	I couldn't have been degenerating you couldn't have been degenerating she couldn't have been degenerating we couldn't have been degenerating you couldn't have been degenerating they couldn't have been degenerating

Interrogative form

Simple form	V-ing form
could I degenerate? could you degenerate? could she degenerate? could we degenerate? could you degenerate? could they degenerate?	could I be degenerating? could you be degenerating? could she be degenerating? could we be degenerating? could you be degenerating? could they be degenerating?
Perfect	V-ing perfect
could I have degenerated? could you have degenerated? could she have degenerated? could we have degenerated? could you have degenerated? could they have degenerated?	could I have been degenerating? could you have been degenerating? could she have been degenerating? could we have been degenerating? could you have been degenerating? could they have been degenerating?

Interro-negative form

Simple form	V-ing form
couldn't I degenerate? couldn't you degenerate? couldn't she degenerate? couldn't we degenerate? couldn't you degenerate? couldn't they degenerate?	couldn't I be degenerating? couldn't you be degenerating? couldn't she be degenerating? couldn't we be degenerating? couldn't you be degenerating? couldn't they be degenerating?
Perfect	V-ing perfect
couldn't I have degenerated? couldn't you have degenerated? couldn't she have degenerated? couldn't we have degenerated? couldn't you have degenerated? couldn't they have degenerated?	couldn't I have been degenerating? couldn't you have been degenerating? couldn't she have been degenerating? couldn't we have been degenerating? couldn't you have been degenerating? couldn't they have been degenerating?