could wigwag
Regular verb: wigwag - wigwaged- wigwaged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could wigwag
you could wigwag
she could wigwag
we could wigwag
you could wigwag
they could wigwag 	I could be wigwaging
you could be wigwaging
she could be wigwaging
we could be wigwaging
you could be wigwaging
they could be wigwaging	I could have wigwaged
you could have wigwaged
she could have wigwaged
we could have wigwaged
you could have wigwaged
they could have wigwaged	I could have been wigwaging
you could have been wigwaging
she could have been wigwaging
we could have been wigwaging
you could have been wigwaging
they could have been wigwaging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't wigwag
you couldn't wigwag
she couldn't wigwag
we couldn't wigwag
you couldn't wigwag
they couldn't wigwag 	I couldn't be wigwaging
you couldn't be wigwaging
she couldn't be wigwaging
we couldn't be wigwaging
you couldn't be wigwaging
they couldn't be wigwaging	I couldn't have wigwaged
you couldn't have wigwaged
she couldn't have wigwaged
we couldn't have wigwaged
you couldn't have wigwaged
they couldn't have wigwaged	I couldn't have been wigwaging
you couldn't have been wigwaging
she couldn't have been wigwaging
we couldn't have been wigwaging
you couldn't have been wigwaging
they couldn't have been wigwaging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I wigwag?
could you wigwag?
could she wigwag?
could we wigwag?
could you wigwag?
could they wigwag? 	could I be wigwaging?
could you be wigwaging?
could she be wigwaging?
could we be wigwaging?
could you be wigwaging?
could they be wigwaging? 	could I have wigwaged?
could you have wigwaged?
could she have wigwaged?
could we have wigwaged?
could you have wigwaged?
could they have wigwaged? 	could I have been wigwaging?
could you have been wigwaging?
could she have been wigwaging?
could we have been wigwaging?
could you have been wigwaging?
could they have been wigwaging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I wigwag?
couldn't you wigwag?
couldn't she wigwag?
couldn't we wigwag?
couldn't you wigwag?
couldn't they wigwag? 	couldn't I be wigwaging?
couldn't you be wigwaging?
couldn't she be wigwaging?
couldn't we be wigwaging?
couldn't you be wigwaging?
couldn't they be wigwaging? 	couldn't I have wigwaged?
couldn't you have wigwaged?
couldn't she have wigwaged?
couldn't we have wigwaged?
couldn't you have wigwaged?
couldn't they have wigwaged? 	couldn't I have been wigwaging?
couldn't you have been wigwaging?
couldn't she have been wigwaging?
couldn't we have been wigwaging?
couldn't you have been wigwaging?
couldn't they have been wigwaging?