could mercerize
Regular verb: mercerize - mercerized- mercerized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could mercerize
you could mercerize
she could mercerize
we could mercerize
you could mercerize
they could mercerize 	I could be mercerizing
you could be mercerizing
she could be mercerizing
we could be mercerizing
you could be mercerizing
they could be mercerizing	I could have mercerized
you could have mercerized
she could have mercerized
we could have mercerized
you could have mercerized
they could have mercerized	I could have been mercerizing
you could have been mercerizing
she could have been mercerizing
we could have been mercerizing
you could have been mercerizing
they could have been mercerizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't mercerize
you couldn't mercerize
she couldn't mercerize
we couldn't mercerize
you couldn't mercerize
they couldn't mercerize 	I couldn't be mercerizing
you couldn't be mercerizing
she couldn't be mercerizing
we couldn't be mercerizing
you couldn't be mercerizing
they couldn't be mercerizing	I couldn't have mercerized
you couldn't have mercerized
she couldn't have mercerized
we couldn't have mercerized
you couldn't have mercerized
they couldn't have mercerized	I couldn't have been mercerizing
you couldn't have been mercerizing
she couldn't have been mercerizing
we couldn't have been mercerizing
you couldn't have been mercerizing
they couldn't have been mercerizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I mercerize?
could you mercerize?
could she mercerize?
could we mercerize?
could you mercerize?
could they mercerize? 	could I be mercerizing?
could you be mercerizing?
could she be mercerizing?
could we be mercerizing?
could you be mercerizing?
could they be mercerizing? 	could I have mercerized?
could you have mercerized?
could she have mercerized?
could we have mercerized?
could you have mercerized?
could they have mercerized? 	could I have been mercerizing?
could you have been mercerizing?
could she have been mercerizing?
could we have been mercerizing?
could you have been mercerizing?
could they have been mercerizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I mercerize?
couldn't you mercerize?
couldn't she mercerize?
couldn't we mercerize?
couldn't you mercerize?
couldn't they mercerize? 	couldn't I be mercerizing?
couldn't you be mercerizing?
couldn't she be mercerizing?
couldn't we be mercerizing?
couldn't you be mercerizing?
couldn't they be mercerizing? 	couldn't I have mercerized?
couldn't you have mercerized?
couldn't she have mercerized?
couldn't we have mercerized?
couldn't you have mercerized?
couldn't they have mercerized? 	couldn't I have been mercerizing?
couldn't you have been mercerizing?
couldn't she have been mercerizing?
couldn't we have been mercerizing?
couldn't you have been mercerizing?
couldn't they have been mercerizing?