could go
Irregular verb: go - went- gone

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I couldn't go
you couldn't go
she couldn't go
we couldn't go
you couldn't go
they couldn't go 	I couldn't be going
you couldn't be going
she couldn't be going
we couldn't be going
you couldn't be going
they couldn't be going	I couldn't have gone
you couldn't have gone
she couldn't have gone
we couldn't have gone
you couldn't have gone
they couldn't have gone	I couldn't have been going
you couldn't have been going
she couldn't have been going
we couldn't have been going
you couldn't have been going
they couldn't have been going	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
couldn't I go?
couldn't you go?
couldn't she go?
couldn't we go?
couldn't you go?
couldn't they go? 	couldn't I be going?
couldn't you be going?
couldn't she be going?
couldn't we be going?
couldn't you be going?
couldn't they be going? 	couldn't I have gone?
couldn't you have gone?
couldn't she have gone?
couldn't we have gone?
couldn't you have gone?
couldn't they have gone? 	couldn't I have been going?
couldn't you have been going?
couldn't she have been going?
couldn't we have been going?
couldn't you have been going?
couldn't they have been going?