could token
Regular verb: token - tokened- tokened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could token
you could token
she could token
we could token
you could token
they could token 	I could be tokening
you could be tokening
she could be tokening
we could be tokening
you could be tokening
they could be tokening	I could have tokened
you could have tokened
she could have tokened
we could have tokened
you could have tokened
they could have tokened	I could have been tokening
you could have been tokening
she could have been tokening
we could have been tokening
you could have been tokening
they could have been tokening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't token
you couldn't token
she couldn't token
we couldn't token
you couldn't token
they couldn't token 	I couldn't be tokening
you couldn't be tokening
she couldn't be tokening
we couldn't be tokening
you couldn't be tokening
they couldn't be tokening	I couldn't have tokened
you couldn't have tokened
she couldn't have tokened
we couldn't have tokened
you couldn't have tokened
they couldn't have tokened	I couldn't have been tokening
you couldn't have been tokening
she couldn't have been tokening
we couldn't have been tokening
you couldn't have been tokening
they couldn't have been tokening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I token?
could you token?
could she token?
could we token?
could you token?
could they token? 	could I be tokening?
could you be tokening?
could she be tokening?
could we be tokening?
could you be tokening?
could they be tokening? 	could I have tokened?
could you have tokened?
could she have tokened?
could we have tokened?
could you have tokened?
could they have tokened? 	could I have been tokening?
could you have been tokening?
could she have been tokening?
could we have been tokening?
could you have been tokening?
could they have been tokening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I token?
couldn't you token?
couldn't she token?
couldn't we token?
couldn't you token?
couldn't they token? 	couldn't I be tokening?
couldn't you be tokening?
couldn't she be tokening?
couldn't we be tokening?
couldn't you be tokening?
couldn't they be tokening? 	couldn't I have tokened?
couldn't you have tokened?
couldn't she have tokened?
couldn't we have tokened?
couldn't you have tokened?
couldn't they have tokened? 	couldn't I have been tokening?
couldn't you have been tokening?
couldn't she have been tokening?
couldn't we have been tokening?
couldn't you have been tokening?
couldn't they have been tokening?