could except
Regular verb: except - excepted- excepted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could except
you could except
she could except
we could except
you could except
they could except 	I could be excepting
you could be excepting
she could be excepting
we could be excepting
you could be excepting
they could be excepting	I could have excepted
you could have excepted
she could have excepted
we could have excepted
you could have excepted
they could have excepted	I could have been excepting
you could have been excepting
she could have been excepting
we could have been excepting
you could have been excepting
they could have been excepting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't except
you couldn't except
she couldn't except
we couldn't except
you couldn't except
they couldn't except 	I couldn't be excepting
you couldn't be excepting
she couldn't be excepting
we couldn't be excepting
you couldn't be excepting
they couldn't be excepting	I couldn't have excepted
you couldn't have excepted
she couldn't have excepted
we couldn't have excepted
you couldn't have excepted
they couldn't have excepted	I couldn't have been excepting
you couldn't have been excepting
she couldn't have been excepting
we couldn't have been excepting
you couldn't have been excepting
they couldn't have been excepting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I except?
could you except?
could she except?
could we except?
could you except?
could they except? 	could I be excepting?
could you be excepting?
could she be excepting?
could we be excepting?
could you be excepting?
could they be excepting? 	could I have excepted?
could you have excepted?
could she have excepted?
could we have excepted?
could you have excepted?
could they have excepted? 	could I have been excepting?
could you have been excepting?
could she have been excepting?
could we have been excepting?
could you have been excepting?
could they have been excepting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I except?
couldn't you except?
couldn't she except?
couldn't we except?
couldn't you except?
couldn't they except? 	couldn't I be excepting?
couldn't you be excepting?
couldn't she be excepting?
couldn't we be excepting?
couldn't you be excepting?
couldn't they be excepting? 	couldn't I have excepted?
couldn't you have excepted?
couldn't she have excepted?
couldn't we have excepted?
couldn't you have excepted?
couldn't they have excepted? 	couldn't I have been excepting?
couldn't you have been excepting?
couldn't she have been excepting?
couldn't we have been excepting?
couldn't you have been excepting?
couldn't they have been excepting?