could universalize
Regular verb: universalize - universalized- universalized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could universalize
you could universalize
she could universalize
we could universalize
you could universalize
they could universalize 	I could be universalizing
you could be universalizing
she could be universalizing
we could be universalizing
you could be universalizing
they could be universalizing	I could have universalized
you could have universalized
she could have universalized
we could have universalized
you could have universalized
they could have universalized	I could have been universalizing
you could have been universalizing
she could have been universalizing
we could have been universalizing
you could have been universalizing
they could have been universalizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't universalize
you couldn't universalize
she couldn't universalize
we couldn't universalize
you couldn't universalize
they couldn't universalize 	I couldn't be universalizing
you couldn't be universalizing
she couldn't be universalizing
we couldn't be universalizing
you couldn't be universalizing
they couldn't be universalizing	I couldn't have universalized
you couldn't have universalized
she couldn't have universalized
we couldn't have universalized
you couldn't have universalized
they couldn't have universalized	I couldn't have been universalizing
you couldn't have been universalizing
she couldn't have been universalizing
we couldn't have been universalizing
you couldn't have been universalizing
they couldn't have been universalizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I universalize?
could you universalize?
could she universalize?
could we universalize?
could you universalize?
could they universalize? 	could I be universalizing?
could you be universalizing?
could she be universalizing?
could we be universalizing?
could you be universalizing?
could they be universalizing? 	could I have universalized?
could you have universalized?
could she have universalized?
could we have universalized?
could you have universalized?
could they have universalized? 	could I have been universalizing?
could you have been universalizing?
could she have been universalizing?
could we have been universalizing?
could you have been universalizing?
could they have been universalizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I universalize?
couldn't you universalize?
couldn't she universalize?
couldn't we universalize?
couldn't you universalize?
couldn't they universalize? 	couldn't I be universalizing?
couldn't you be universalizing?
couldn't she be universalizing?
couldn't we be universalizing?
couldn't you be universalizing?
couldn't they be universalizing? 	couldn't I have universalized?
couldn't you have universalized?
couldn't she have universalized?
couldn't we have universalized?
couldn't you have universalized?
couldn't they have universalized? 	couldn't I have been universalizing?
couldn't you have been universalizing?
couldn't she have been universalizing?
couldn't we have been universalizing?
couldn't you have been universalizing?
couldn't they have been universalizing?