could wagon
Regular verb: wagon - wagoned- wagoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could wagon
you could wagon
she could wagon
we could wagon
you could wagon
they could wagon 	I could be wagoning
you could be wagoning
she could be wagoning
we could be wagoning
you could be wagoning
they could be wagoning	I could have wagoned
you could have wagoned
she could have wagoned
we could have wagoned
you could have wagoned
they could have wagoned	I could have been wagoning
you could have been wagoning
she could have been wagoning
we could have been wagoning
you could have been wagoning
they could have been wagoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't wagon
you couldn't wagon
she couldn't wagon
we couldn't wagon
you couldn't wagon
they couldn't wagon 	I couldn't be wagoning
you couldn't be wagoning
she couldn't be wagoning
we couldn't be wagoning
you couldn't be wagoning
they couldn't be wagoning	I couldn't have wagoned
you couldn't have wagoned
she couldn't have wagoned
we couldn't have wagoned
you couldn't have wagoned
they couldn't have wagoned	I couldn't have been wagoning
you couldn't have been wagoning
she couldn't have been wagoning
we couldn't have been wagoning
you couldn't have been wagoning
they couldn't have been wagoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I wagon?
could you wagon?
could she wagon?
could we wagon?
could you wagon?
could they wagon? 	could I be wagoning?
could you be wagoning?
could she be wagoning?
could we be wagoning?
could you be wagoning?
could they be wagoning? 	could I have wagoned?
could you have wagoned?
could she have wagoned?
could we have wagoned?
could you have wagoned?
could they have wagoned? 	could I have been wagoning?
could you have been wagoning?
could she have been wagoning?
could we have been wagoning?
could you have been wagoning?
could they have been wagoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I wagon?
couldn't you wagon?
couldn't she wagon?
couldn't we wagon?
couldn't you wagon?
couldn't they wagon? 	couldn't I be wagoning?
couldn't you be wagoning?
couldn't she be wagoning?
couldn't we be wagoning?
couldn't you be wagoning?
couldn't they be wagoning? 	couldn't I have wagoned?
couldn't you have wagoned?
couldn't she have wagoned?
couldn't we have wagoned?
couldn't you have wagoned?
couldn't they have wagoned? 	couldn't I have been wagoning?
couldn't you have been wagoning?
couldn't she have been wagoning?
couldn't we have been wagoning?
couldn't you have been wagoning?
couldn't they have been wagoning?