could carol
Regular verb: carol - carolled- carolled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could carol
you could carol
he could carol
we could carol
you could carol
they could carol 	I could be carolling
you could be carolling
he could be carolling
we could be carolling
you could be carolling
they could be carolling	I could have carolled
you could have carolled
he could have carolled
we could have carolled
you could have carolled
they could have carolled	I could have been carolling
you could have been carolling
he could have been carolling
we could have been carolling
you could have been carolling
they could have been carolling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't carol
you couldn't carol
he couldn't carol
we couldn't carol
you couldn't carol
they couldn't carol 	I couldn't be carolling
you couldn't be carolling
he couldn't be carolling
we couldn't be carolling
you couldn't be carolling
they couldn't be carolling	I couldn't have carolled
you couldn't have carolled
he couldn't have carolled
we couldn't have carolled
you couldn't have carolled
they couldn't have carolled	I couldn't have been carolling
you couldn't have been carolling
he couldn't have been carolling
we couldn't have been carolling
you couldn't have been carolling
they couldn't have been carolling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I carol?
could you carol?
could he carol?
could we carol?
could you carol?
could they carol? 	could I be carolling?
could you be carolling?
could he be carolling?
could we be carolling?
could you be carolling?
could they be carolling? 	could I have carolled?
could you have carolled?
could he have carolled?
could we have carolled?
could you have carolled?
could they have carolled? 	could I have been carolling?
could you have been carolling?
could he have been carolling?
could we have been carolling?
could you have been carolling?
could they have been carolling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I carol?
couldn't you carol?
couldn't he carol?
couldn't we carol?
couldn't you carol?
couldn't they carol? 	couldn't I be carolling?
couldn't you be carolling?
couldn't he be carolling?
couldn't we be carolling?
couldn't you be carolling?
couldn't they be carolling? 	couldn't I have carolled?
couldn't you have carolled?
couldn't he have carolled?
couldn't we have carolled?
couldn't you have carolled?
couldn't they have carolled? 	couldn't I have been carolling?
couldn't you have been carolling?
couldn't he have been carolling?
couldn't we have been carolling?
couldn't you have been carolling?
couldn't they have been carolling?