could randomize
Regular verb: randomize - randomized- randomized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could randomize
you could randomize
she could randomize
we could randomize
you could randomize
they could randomize 	I could be randomizing
you could be randomizing
she could be randomizing
we could be randomizing
you could be randomizing
they could be randomizing	I could have randomized
you could have randomized
she could have randomized
we could have randomized
you could have randomized
they could have randomized	I could have been randomizing
you could have been randomizing
she could have been randomizing
we could have been randomizing
you could have been randomizing
they could have been randomizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't randomize
you couldn't randomize
she couldn't randomize
we couldn't randomize
you couldn't randomize
they couldn't randomize 	I couldn't be randomizing
you couldn't be randomizing
she couldn't be randomizing
we couldn't be randomizing
you couldn't be randomizing
they couldn't be randomizing	I couldn't have randomized
you couldn't have randomized
she couldn't have randomized
we couldn't have randomized
you couldn't have randomized
they couldn't have randomized	I couldn't have been randomizing
you couldn't have been randomizing
she couldn't have been randomizing
we couldn't have been randomizing
you couldn't have been randomizing
they couldn't have been randomizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I randomize?
could you randomize?
could she randomize?
could we randomize?
could you randomize?
could they randomize? 	could I be randomizing?
could you be randomizing?
could she be randomizing?
could we be randomizing?
could you be randomizing?
could they be randomizing? 	could I have randomized?
could you have randomized?
could she have randomized?
could we have randomized?
could you have randomized?
could they have randomized? 	could I have been randomizing?
could you have been randomizing?
could she have been randomizing?
could we have been randomizing?
could you have been randomizing?
could they have been randomizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I randomize?
couldn't you randomize?
couldn't she randomize?
couldn't we randomize?
couldn't you randomize?
couldn't they randomize? 	couldn't I be randomizing?
couldn't you be randomizing?
couldn't she be randomizing?
couldn't we be randomizing?
couldn't you be randomizing?
couldn't they be randomizing? 	couldn't I have randomized?
couldn't you have randomized?
couldn't she have randomized?
couldn't we have randomized?
couldn't you have randomized?
couldn't they have randomized? 	couldn't I have been randomizing?
couldn't you have been randomizing?
couldn't she have been randomizing?
couldn't we have been randomizing?
couldn't you have been randomizing?
couldn't they have been randomizing?