can memorize
Regular verb: memorize - memorized- memorized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can memorize
you can memorize
he can memorize
we can memorize
you can memorize
they can memorize 	I can be memorizing
you can be memorizing
he can be memorizing
we can be memorizing
you can be memorizing
they can be memorizing	I can have memorized
you can have memorized
he can have memorized
we can have memorized
you can have memorized
they can have memorized	I can have been memorizing
you can have been memorizing
he can have been memorizing
we can have been memorizing
you can have been memorizing
they can have been memorizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't memorize
you can't memorize
he can't memorize
we can't memorize
you can't memorize
they can't memorize 	I can't be memorizing
you can't be memorizing
he can't be memorizing
we can't be memorizing
you can't be memorizing
they can't be memorizing	I can't have memorized
you can't have memorized
he can't have memorized
we can't have memorized
you can't have memorized
they can't have memorized	I can't have been memorizing
you can't have been memorizing
he can't have been memorizing
we can't have been memorizing
you can't have been memorizing
they can't have been memorizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I memorize?
can you memorize?
can he memorize?
can we memorize?
can you memorize?
can they memorize? 	can I be memorizing?
can you be memorizing?
can he be memorizing?
can we be memorizing?
can you be memorizing?
can they be memorizing? 	can I have memorized?
can you have memorized?
can he have memorized?
can we have memorized?
can you have memorized?
can they have memorized? 	can I have been memorizing?
can you have been memorizing?
can he have been memorizing?
can we have been memorizing?
can you have been memorizing?
can they have been memorizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I memorize?
can't you memorize?
can't he memorize?
can't we memorize?
can't you memorize?
can't they memorize? 	can't I be memorizing?
can't you be memorizing?
can't he be memorizing?
can't we be memorizing?
can't you be memorizing?
can't they be memorizing? 	can't I have memorized?
can't you have memorized?
can't he have memorized?
can't we have memorized?
can't you have memorized?
can't they have memorized? 	can't I have been memorizing?
can't you have been memorizing?
can't he have been memorizing?
can't we have been memorizing?
can't you have been memorizing?
can't they have been memorizing?