could prenumber
Regular verb: prenumber - prenumbered- prenumbered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could prenumber
you could prenumber
he could prenumber
we could prenumber
you could prenumber
they could prenumber 	I could be prenumbering
you could be prenumbering
he could be prenumbering
we could be prenumbering
you could be prenumbering
they could be prenumbering	I could have prenumbered
you could have prenumbered
he could have prenumbered
we could have prenumbered
you could have prenumbered
they could have prenumbered	I could have been prenumbering
you could have been prenumbering
he could have been prenumbering
we could have been prenumbering
you could have been prenumbering
they could have been prenumbering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not prenumber
you could not prenumber
he could not prenumber
we could not prenumber
you could not prenumber
they could not prenumber 	I could not be prenumbering
you could not be prenumbering
he could not be prenumbering
we could not be prenumbering
you could not be prenumbering
they could not be prenumbering	I could not have prenumbered
you could not have prenumbered
he could not have prenumbered
we could not have prenumbered
you could not have prenumbered
they could not have prenumbered	I could not have been prenumbering
you could not have been prenumbering
he could not have been prenumbering
we could not have been prenumbering
you could not have been prenumbering
they could not have been prenumbering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I prenumber?
could you prenumber?
could he prenumber?
could we prenumber?
could you prenumber?
could they prenumber? 	could I be prenumbering?
could you be prenumbering?
could he be prenumbering?
could we be prenumbering?
could you be prenumbering?
could they be prenumbering? 	could I have prenumbered?
could you have prenumbered?
could he have prenumbered?
could we have prenumbered?
could you have prenumbered?
could they have prenumbered? 	could I have been prenumbering?
could you have been prenumbering?
could he have been prenumbering?
could we have been prenumbering?
could you have been prenumbering?
could they have been prenumbering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not prenumber?
could you not prenumber?
could he not prenumber?
could we not prenumber?
could you not prenumber?
could they not prenumber? 	could I not be prenumbering?
could you not be prenumbering?
could he not be prenumbering?
could we not be prenumbering?
could you not be prenumbering?
could they not be prenumbering? 	could I not have prenumbered?
could you not have prenumbered?
could he not have prenumbered?
could we not have prenumbered?
could you not have prenumbered?
could they not have prenumbered? 	could I not have been prenumbering?
could you not have been prenumbering?
could he not have been prenumbering?
could we not have been prenumbering?
could you not have been prenumbering?
could they not have been prenumbering?