could preexpose
Regular verb: preexpose - preexposed- preexposed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could preexpose
you could preexpose
she could preexpose
we could preexpose
you could preexpose
they could preexpose 	I could be preexposing
you could be preexposing
she could be preexposing
we could be preexposing
you could be preexposing
they could be preexposing	I could have preexposed
you could have preexposed
she could have preexposed
we could have preexposed
you could have preexposed
they could have preexposed	I could have been preexposing
you could have been preexposing
she could have been preexposing
we could have been preexposing
you could have been preexposing
they could have been preexposing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not preexpose
you could not preexpose
she could not preexpose
we could not preexpose
you could not preexpose
they could not preexpose 	I could not be preexposing
you could not be preexposing
she could not be preexposing
we could not be preexposing
you could not be preexposing
they could not be preexposing	I could not have preexposed
you could not have preexposed
she could not have preexposed
we could not have preexposed
you could not have preexposed
they could not have preexposed	I could not have been preexposing
you could not have been preexposing
she could not have been preexposing
we could not have been preexposing
you could not have been preexposing
they could not have been preexposing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I preexpose?
could you preexpose?
could she preexpose?
could we preexpose?
could you preexpose?
could they preexpose? 	could I be preexposing?
could you be preexposing?
could she be preexposing?
could we be preexposing?
could you be preexposing?
could they be preexposing? 	could I have preexposed?
could you have preexposed?
could she have preexposed?
could we have preexposed?
could you have preexposed?
could they have preexposed? 	could I have been preexposing?
could you have been preexposing?
could she have been preexposing?
could we have been preexposing?
could you have been preexposing?
could they have been preexposing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not preexpose?
could you not preexpose?
could she not preexpose?
could we not preexpose?
could you not preexpose?
could they not preexpose? 	could I not be preexposing?
could you not be preexposing?
could she not be preexposing?
could we not be preexposing?
could you not be preexposing?
could they not be preexposing? 	could I not have preexposed?
could you not have preexposed?
could she not have preexposed?
could we not have preexposed?
could you not have preexposed?
could they not have preexposed? 	could I not have been preexposing?
could you not have been preexposing?
could she not have been preexposing?
could we not have been preexposing?
could you not have been preexposing?
could they not have been preexposing?