can synchronize
Regular verb: synchronize - synchronized- synchronized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can synchronize
you can synchronize
she can synchronize
we can synchronize
you can synchronize
they can synchronize 	I can be synchronizing
you can be synchronizing
she can be synchronizing
we can be synchronizing
you can be synchronizing
they can be synchronizing	I can have synchronized
you can have synchronized
she can have synchronized
we can have synchronized
you can have synchronized
they can have synchronized	I can have been synchronizing
you can have been synchronizing
she can have been synchronizing
we can have been synchronizing
you can have been synchronizing
they can have been synchronizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't synchronize
you can't synchronize
she can't synchronize
we can't synchronize
you can't synchronize
they can't synchronize 	I can't be synchronizing
you can't be synchronizing
she can't be synchronizing
we can't be synchronizing
you can't be synchronizing
they can't be synchronizing	I can't have synchronized
you can't have synchronized
she can't have synchronized
we can't have synchronized
you can't have synchronized
they can't have synchronized	I can't have been synchronizing
you can't have been synchronizing
she can't have been synchronizing
we can't have been synchronizing
you can't have been synchronizing
they can't have been synchronizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I synchronize?
can you synchronize?
can she synchronize?
can we synchronize?
can you synchronize?
can they synchronize? 	can I be synchronizing?
can you be synchronizing?
can she be synchronizing?
can we be synchronizing?
can you be synchronizing?
can they be synchronizing? 	can I have synchronized?
can you have synchronized?
can she have synchronized?
can we have synchronized?
can you have synchronized?
can they have synchronized? 	can I have been synchronizing?
can you have been synchronizing?
can she have been synchronizing?
can we have been synchronizing?
can you have been synchronizing?
can they have been synchronizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I synchronize?
can't you synchronize?
can't she synchronize?
can't we synchronize?
can't you synchronize?
can't they synchronize? 	can't I be synchronizing?
can't you be synchronizing?
can't she be synchronizing?
can't we be synchronizing?
can't you be synchronizing?
can't they be synchronizing? 	can't I have synchronized?
can't you have synchronized?
can't she have synchronized?
can't we have synchronized?
can't you have synchronized?
can't they have synchronized? 	can't I have been synchronizing?
can't you have been synchronizing?
can't she have been synchronizing?
can't we have been synchronizing?
can't you have been synchronizing?
can't they have been synchronizing?