could curtsey
Regular verb: curtsey - curtseyed- curtseyed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could curtsey
you could curtsey
she could curtsey
we could curtsey
you could curtsey
they could curtsey 	I could be curtseying
you could be curtseying
she could be curtseying
we could be curtseying
you could be curtseying
they could be curtseying	I could have curtseyed
you could have curtseyed
she could have curtseyed
we could have curtseyed
you could have curtseyed
they could have curtseyed	I could have been curtseying
you could have been curtseying
she could have been curtseying
we could have been curtseying
you could have been curtseying
they could have been curtseying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not curtsey
you could not curtsey
she could not curtsey
we could not curtsey
you could not curtsey
they could not curtsey 	I could not be curtseying
you could not be curtseying
she could not be curtseying
we could not be curtseying
you could not be curtseying
they could not be curtseying	I could not have curtseyed
you could not have curtseyed
she could not have curtseyed
we could not have curtseyed
you could not have curtseyed
they could not have curtseyed	I could not have been curtseying
you could not have been curtseying
she could not have been curtseying
we could not have been curtseying
you could not have been curtseying
they could not have been curtseying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I curtsey?
could you curtsey?
could she curtsey?
could we curtsey?
could you curtsey?
could they curtsey? 	could I be curtseying?
could you be curtseying?
could she be curtseying?
could we be curtseying?
could you be curtseying?
could they be curtseying? 	could I have curtseyed?
could you have curtseyed?
could she have curtseyed?
could we have curtseyed?
could you have curtseyed?
could they have curtseyed? 	could I have been curtseying?
could you have been curtseying?
could she have been curtseying?
could we have been curtseying?
could you have been curtseying?
could they have been curtseying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not curtsey?
could you not curtsey?
could she not curtsey?
could we not curtsey?
could you not curtsey?
could they not curtsey? 	could I not be curtseying?
could you not be curtseying?
could she not be curtseying?
could we not be curtseying?
could you not be curtseying?
could they not be curtseying? 	could I not have curtseyed?
could you not have curtseyed?
could she not have curtseyed?
could we not have curtseyed?
could you not have curtseyed?
could they not have curtseyed? 	could I not have been curtseying?
could you not have been curtseying?
could she not have been curtseying?
could we not have been curtseying?
could you not have been curtseying?
could they not have been curtseying?