can winterize
Regular verb: winterize - winterized- winterized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can winterize
you can winterize
he can winterize
we can winterize
you can winterize
they can winterize 	I can be winterizing
you can be winterizing
he can be winterizing
we can be winterizing
you can be winterizing
they can be winterizing	I can have winterized
you can have winterized
he can have winterized
we can have winterized
you can have winterized
they can have winterized	I can have been winterizing
you can have been winterizing
he can have been winterizing
we can have been winterizing
you can have been winterizing
they can have been winterizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't winterize
you can't winterize
he can't winterize
we can't winterize
you can't winterize
they can't winterize 	I can't be winterizing
you can't be winterizing
he can't be winterizing
we can't be winterizing
you can't be winterizing
they can't be winterizing	I can't have winterized
you can't have winterized
he can't have winterized
we can't have winterized
you can't have winterized
they can't have winterized	I can't have been winterizing
you can't have been winterizing
he can't have been winterizing
we can't have been winterizing
you can't have been winterizing
they can't have been winterizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I winterize?
can you winterize?
can he winterize?
can we winterize?
can you winterize?
can they winterize? 	can I be winterizing?
can you be winterizing?
can he be winterizing?
can we be winterizing?
can you be winterizing?
can they be winterizing? 	can I have winterized?
can you have winterized?
can he have winterized?
can we have winterized?
can you have winterized?
can they have winterized? 	can I have been winterizing?
can you have been winterizing?
can he have been winterizing?
can we have been winterizing?
can you have been winterizing?
can they have been winterizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I winterize?
can't you winterize?
can't he winterize?
can't we winterize?
can't you winterize?
can't they winterize? 	can't I be winterizing?
can't you be winterizing?
can't he be winterizing?
can't we be winterizing?
can't you be winterizing?
can't they be winterizing? 	can't I have winterized?
can't you have winterized?
can't he have winterized?
can't we have winterized?
can't you have winterized?
can't they have winterized? 	can't I have been winterizing?
can't you have been winterizing?
can't he have been winterizing?
can't we have been winterizing?
can't you have been winterizing?
can't they have been winterizing?