English verb conjugation
COULD COME

Irregular verb: come - came - come

Affirmation

Simple form	V-ing form
I could come you could come he could come we could come you could come they could come	I could be coming you could be coming he could be coming we could be coming you could be coming they could be coming
Perfect	V-ing perfect
I could have come you could have come he could have come we could have come you could have come they could have come	I could have been coming you could have been coming he could have been coming we could have been coming you could have been coming they could have been coming

Negation

Simple form	V-ing form
I couldn't come you couldn't come he couldn't come we couldn't come you couldn't come they couldn't come	I couldn't be coming you couldn't be coming he couldn't be coming we couldn't be coming you couldn't be coming they couldn't be coming
Perfect	V-ing perfect
I couldn't have come you couldn't have come he couldn't have come we couldn't have come you couldn't have come they couldn't have come	I couldn't have been coming you couldn't have been coming he couldn't have been coming we couldn't have been coming you couldn't have been coming they couldn't have been coming

Interrogative form

Simple form	V-ing form
could I come? could you come? could he come? could we come? could you come? could they come?	could I be coming? could you be coming? could he be coming? could we be coming? could you be coming? could they be coming?
Perfect	V-ing perfect
could I have come? could you have come? could he have come? could we have come? could you have come? could they have come?	could I have been coming? could you have been coming? could he have been coming? could we have been coming? could you have been coming? could they have been coming?

Interro-negative form

Simple form	V-ing form
couldn't I come? couldn't you come? couldn't he come? couldn't we come? couldn't you come? couldn't they come?	couldn't I be coming? couldn't you be coming? couldn't he be coming? couldn't we be coming? couldn't you be coming? couldn't they be coming?
Perfect	V-ing perfect
couldn't I have come? couldn't you have come? couldn't he have come? couldn't we have come? couldn't you have come? couldn't they have come?	couldn't I have been coming? couldn't you have been coming? couldn't he have been coming? couldn't we have been coming? couldn't you have been coming? couldn't they have been coming?