could cotton
Regular verb: cotton - cottoned- cottoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cotton
you could cotton
he could cotton
we could cotton
you could cotton
they could cotton 	I could be cottoning
you could be cottoning
he could be cottoning
we could be cottoning
you could be cottoning
they could be cottoning	I could have cottoned
you could have cottoned
he could have cottoned
we could have cottoned
you could have cottoned
they could have cottoned	I could have been cottoning
you could have been cottoning
he could have been cottoning
we could have been cottoning
you could have been cottoning
they could have been cottoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't cotton
you couldn't cotton
he couldn't cotton
we couldn't cotton
you couldn't cotton
they couldn't cotton 	I couldn't be cottoning
you couldn't be cottoning
he couldn't be cottoning
we couldn't be cottoning
you couldn't be cottoning
they couldn't be cottoning	I couldn't have cottoned
you couldn't have cottoned
he couldn't have cottoned
we couldn't have cottoned
you couldn't have cottoned
they couldn't have cottoned	I couldn't have been cottoning
you couldn't have been cottoning
he couldn't have been cottoning
we couldn't have been cottoning
you couldn't have been cottoning
they couldn't have been cottoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cotton?
could you cotton?
could he cotton?
could we cotton?
could you cotton?
could they cotton? 	could I be cottoning?
could you be cottoning?
could he be cottoning?
could we be cottoning?
could you be cottoning?
could they be cottoning? 	could I have cottoned?
could you have cottoned?
could he have cottoned?
could we have cottoned?
could you have cottoned?
could they have cottoned? 	could I have been cottoning?
could you have been cottoning?
could he have been cottoning?
could we have been cottoning?
could you have been cottoning?
could they have been cottoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I cotton?
couldn't you cotton?
couldn't he cotton?
couldn't we cotton?
couldn't you cotton?
couldn't they cotton? 	couldn't I be cottoning?
couldn't you be cottoning?
couldn't he be cottoning?
couldn't we be cottoning?
couldn't you be cottoning?
couldn't they be cottoning? 	couldn't I have cottoned?
couldn't you have cottoned?
couldn't he have cottoned?
couldn't we have cottoned?
couldn't you have cottoned?
couldn't they have cottoned? 	couldn't I have been cottoning?
couldn't you have been cottoning?
couldn't he have been cottoning?
couldn't we have been cottoning?
couldn't you have been cottoning?
couldn't they have been cottoning?