English verb conjugation
COULD GO

Irregular verb: go - went - gone

Affirmation

Simple form	V-ing form
I could go you could go she could go we could go you could go they could go	I could be going you could be going she could be going we could be going you could be going they could be going
Perfect	V-ing perfect
I could have gone you could have gone she could have gone we could have gone you could have gone they could have gone	I could have been going you could have been going she could have been going we could have been going you could have been going they could have been going

Negation

Simple form	V-ing form
I could not go you could not go she could not go we could not go you could not go they could not go	I could not be going you could not be going she could not be going we could not be going you could not be going they could not be going
Perfect	V-ing perfect
I could not have gone you could not have gone she could not have gone we could not have gone you could not have gone they could not have gone	I could not have been going you could not have been going she could not have been going we could not have been going you could not have been going they could not have been going

Interrogative form

Simple form	V-ing form
could I go? could you go? could she go? could we go? could you go? could they go?	could I be going? could you be going? could she be going? could we be going? could you be going? could they be going?
Perfect	V-ing perfect
could I have gone? could you have gone? could she have gone? could we have gone? could you have gone? could they have gone?	could I have been going? could you have been going? could she have been going? could we have been going? could you have been going? could they have been going?

Interro-negative form

Simple form	V-ing form
could I not go? could you not go? could she not go? could we not go? could you not go? could they not go?	could I not be going? could you not be going? could she not be going? could we not be going? could you not be going? could they not be going?
Perfect	V-ing perfect
could I not have gone? could you not have gone? could she not have gone? could we not have gone? could you not have gone? could they not have gone?	could I not have been going? could you not have been going? could she not have been going? could we not have been going? could you not have been going? could they not have been going?