could pillow
Regular verb: pillow - pillowed- pillowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pillow
you could pillow
he could pillow
we could pillow
you could pillow
they could pillow 	I could be pillowing
you could be pillowing
he could be pillowing
we could be pillowing
you could be pillowing
they could be pillowing	I could have pillowed
you could have pillowed
he could have pillowed
we could have pillowed
you could have pillowed
they could have pillowed	I could have been pillowing
you could have been pillowing
he could have been pillowing
we could have been pillowing
you could have been pillowing
they could have been pillowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not pillow
you could not pillow
he could not pillow
we could not pillow
you could not pillow
they could not pillow 	I could not be pillowing
you could not be pillowing
he could not be pillowing
we could not be pillowing
you could not be pillowing
they could not be pillowing	I could not have pillowed
you could not have pillowed
he could not have pillowed
we could not have pillowed
you could not have pillowed
they could not have pillowed	I could not have been pillowing
you could not have been pillowing
he could not have been pillowing
we could not have been pillowing
you could not have been pillowing
they could not have been pillowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pillow?
could you pillow?
could he pillow?
could we pillow?
could you pillow?
could they pillow? 	could I be pillowing?
could you be pillowing?
could he be pillowing?
could we be pillowing?
could you be pillowing?
could they be pillowing? 	could I have pillowed?
could you have pillowed?
could he have pillowed?
could we have pillowed?
could you have pillowed?
could they have pillowed? 	could I have been pillowing?
could you have been pillowing?
could he have been pillowing?
could we have been pillowing?
could you have been pillowing?
could they have been pillowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not pillow?
could you not pillow?
could he not pillow?
could we not pillow?
could you not pillow?
could they not pillow? 	could I not be pillowing?
could you not be pillowing?
could he not be pillowing?
could we not be pillowing?
could you not be pillowing?
could they not be pillowing? 	could I not have pillowed?
could you not have pillowed?
could he not have pillowed?
could we not have pillowed?
could you not have pillowed?
could they not have pillowed? 	could I not have been pillowing?
could you not have been pillowing?
could he not have been pillowing?
could we not have been pillowing?
could you not have been pillowing?
could they not have been pillowing?