can factorize
Regular verb: factorize - factorized- factorized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can factorize
you can factorize
he can factorize
we can factorize
you can factorize
they can factorize 	I can be factorizing
you can be factorizing
he can be factorizing
we can be factorizing
you can be factorizing
they can be factorizing	I can have factorized
you can have factorized
he can have factorized
we can have factorized
you can have factorized
they can have factorized	I can have been factorizing
you can have been factorizing
he can have been factorizing
we can have been factorizing
you can have been factorizing
they can have been factorizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't factorize
you can't factorize
he can't factorize
we can't factorize
you can't factorize
they can't factorize 	I can't be factorizing
you can't be factorizing
he can't be factorizing
we can't be factorizing
you can't be factorizing
they can't be factorizing	I can't have factorized
you can't have factorized
he can't have factorized
we can't have factorized
you can't have factorized
they can't have factorized	I can't have been factorizing
you can't have been factorizing
he can't have been factorizing
we can't have been factorizing
you can't have been factorizing
they can't have been factorizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I factorize?
can you factorize?
can he factorize?
can we factorize?
can you factorize?
can they factorize? 	can I be factorizing?
can you be factorizing?
can he be factorizing?
can we be factorizing?
can you be factorizing?
can they be factorizing? 	can I have factorized?
can you have factorized?
can he have factorized?
can we have factorized?
can you have factorized?
can they have factorized? 	can I have been factorizing?
can you have been factorizing?
can he have been factorizing?
can we have been factorizing?
can you have been factorizing?
can they have been factorizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I factorize?
can't you factorize?
can't he factorize?
can't we factorize?
can't you factorize?
can't they factorize? 	can't I be factorizing?
can't you be factorizing?
can't he be factorizing?
can't we be factorizing?
can't you be factorizing?
can't they be factorizing? 	can't I have factorized?
can't you have factorized?
can't he have factorized?
can't we have factorized?
can't you have factorized?
can't they have factorized? 	can't I have been factorizing?
can't you have been factorizing?
can't he have been factorizing?
can't we have been factorizing?
can't you have been factorizing?
can't they have been factorizing?