could hydrolyze
Regular verb: hydrolyze - hydrolyzed- hydrolyzed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could hydrolyze
you could hydrolyze
he could hydrolyze
we could hydrolyze
you could hydrolyze
they could hydrolyze 	I could be hydrolyzing
you could be hydrolyzing
he could be hydrolyzing
we could be hydrolyzing
you could be hydrolyzing
they could be hydrolyzing	I could have hydrolyzed
you could have hydrolyzed
he could have hydrolyzed
we could have hydrolyzed
you could have hydrolyzed
they could have hydrolyzed	I could have been hydrolyzing
you could have been hydrolyzing
he could have been hydrolyzing
we could have been hydrolyzing
you could have been hydrolyzing
they could have been hydrolyzing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not hydrolyze
you could not hydrolyze
he could not hydrolyze
we could not hydrolyze
you could not hydrolyze
they could not hydrolyze 	I could not be hydrolyzing
you could not be hydrolyzing
he could not be hydrolyzing
we could not be hydrolyzing
you could not be hydrolyzing
they could not be hydrolyzing	I could not have hydrolyzed
you could not have hydrolyzed
he could not have hydrolyzed
we could not have hydrolyzed
you could not have hydrolyzed
they could not have hydrolyzed	I could not have been hydrolyzing
you could not have been hydrolyzing
he could not have been hydrolyzing
we could not have been hydrolyzing
you could not have been hydrolyzing
they could not have been hydrolyzing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I hydrolyze?
could you hydrolyze?
could he hydrolyze?
could we hydrolyze?
could you hydrolyze?
could they hydrolyze? 	could I be hydrolyzing?
could you be hydrolyzing?
could he be hydrolyzing?
could we be hydrolyzing?
could you be hydrolyzing?
could they be hydrolyzing? 	could I have hydrolyzed?
could you have hydrolyzed?
could he have hydrolyzed?
could we have hydrolyzed?
could you have hydrolyzed?
could they have hydrolyzed? 	could I have been hydrolyzing?
could you have been hydrolyzing?
could he have been hydrolyzing?
could we have been hydrolyzing?
could you have been hydrolyzing?
could they have been hydrolyzing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not hydrolyze?
could you not hydrolyze?
could he not hydrolyze?
could we not hydrolyze?
could you not hydrolyze?
could they not hydrolyze? 	could I not be hydrolyzing?
could you not be hydrolyzing?
could he not be hydrolyzing?
could we not be hydrolyzing?
could you not be hydrolyzing?
could they not be hydrolyzing? 	could I not have hydrolyzed?
could you not have hydrolyzed?
could he not have hydrolyzed?
could we not have hydrolyzed?
could you not have hydrolyzed?
could they not have hydrolyzed? 	could I not have been hydrolyzing?
could you not have been hydrolyzing?
could he not have been hydrolyzing?
could we not have been hydrolyzing?
could you not have been hydrolyzing?
could they not have been hydrolyzing?