could chorus
Regular verb: chorus - chorused- chorused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could chorus
you could chorus
he could chorus
we could chorus
you could chorus
they could chorus 	I could be chorusing
you could be chorusing
he could be chorusing
we could be chorusing
you could be chorusing
they could be chorusing	I could have chorused
you could have chorused
he could have chorused
we could have chorused
you could have chorused
they could have chorused	I could have been chorusing
you could have been chorusing
he could have been chorusing
we could have been chorusing
you could have been chorusing
they could have been chorusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't chorus
you couldn't chorus
he couldn't chorus
we couldn't chorus
you couldn't chorus
they couldn't chorus 	I couldn't be chorusing
you couldn't be chorusing
he couldn't be chorusing
we couldn't be chorusing
you couldn't be chorusing
they couldn't be chorusing	I couldn't have chorused
you couldn't have chorused
he couldn't have chorused
we couldn't have chorused
you couldn't have chorused
they couldn't have chorused	I couldn't have been chorusing
you couldn't have been chorusing
he couldn't have been chorusing
we couldn't have been chorusing
you couldn't have been chorusing
they couldn't have been chorusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I chorus?
could you chorus?
could he chorus?
could we chorus?
could you chorus?
could they chorus? 	could I be chorusing?
could you be chorusing?
could he be chorusing?
could we be chorusing?
could you be chorusing?
could they be chorusing? 	could I have chorused?
could you have chorused?
could he have chorused?
could we have chorused?
could you have chorused?
could they have chorused? 	could I have been chorusing?
could you have been chorusing?
could he have been chorusing?
could we have been chorusing?
could you have been chorusing?
could they have been chorusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I chorus?
couldn't you chorus?
couldn't he chorus?
couldn't we chorus?
couldn't you chorus?
couldn't they chorus? 	couldn't I be chorusing?
couldn't you be chorusing?
couldn't he be chorusing?
couldn't we be chorusing?
couldn't you be chorusing?
couldn't they be chorusing? 	couldn't I have chorused?
couldn't you have chorused?
couldn't he have chorused?
couldn't we have chorused?
couldn't you have chorused?
couldn't they have chorused? 	couldn't I have been chorusing?
couldn't you have been chorusing?
couldn't he have been chorusing?
couldn't we have been chorusing?
couldn't you have been chorusing?
couldn't they have been chorusing?