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 could not chorus
you could not chorus
he could not chorus
we could not chorus
you could not chorus
they could not chorus 	I could not be chorusing
you could not be chorusing
he could not be chorusing
we could not be chorusing
you could not be chorusing
they could not be chorusing	I could not have chorused
you could not have chorused
he could not have chorused
we could not have chorused
you could not have chorused
they could not have chorused	I could not have been chorusing
you could not have been chorusing
he could not have been chorusing
we could not have been chorusing
you could not have been chorusing
they could not 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 	
could I not chorus?
could you not chorus?
could he not chorus?
could we not chorus?
could you not chorus?
could they not chorus? 	could I not be chorusing?
could you not be chorusing?
could he not be chorusing?
could we not be chorusing?
could you not be chorusing?
could they not be chorusing? 	could I not have chorused?
could you not have chorused?
could he not have chorused?
could we not have chorused?
could you not have chorused?
could they not have chorused? 	could I not have been chorusing?
could you not have been chorusing?
could he not have been chorusing?
could we not have been chorusing?
could you not have been chorusing?
could they not have been chorusing?