can zip
Regular verb: zip - zipped- zipped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can zip
you can zip
she can zip
we can zip
you can zip
they can zip 	I can be zipping
you can be zipping
she can be zipping
we can be zipping
you can be zipping
they can be zipping	I can have zipped
you can have zipped
she can have zipped
we can have zipped
you can have zipped
they can have zipped	I can have been zipping
you can have been zipping
she can have been zipping
we can have been zipping
you can have been zipping
they can have been zipping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't zip
you can't zip
she can't zip
we can't zip
you can't zip
they can't zip 	I can't be zipping
you can't be zipping
she can't be zipping
we can't be zipping
you can't be zipping
they can't be zipping	I can't have zipped
you can't have zipped
she can't have zipped
we can't have zipped
you can't have zipped
they can't have zipped	I can't have been zipping
you can't have been zipping
she can't have been zipping
we can't have been zipping
you can't have been zipping
they can't have been zipping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I zip?
can you zip?
can she zip?
can we zip?
can you zip?
can they zip? 	can I be zipping?
can you be zipping?
can she be zipping?
can we be zipping?
can you be zipping?
can they be zipping? 	can I have zipped?
can you have zipped?
can she have zipped?
can we have zipped?
can you have zipped?
can they have zipped? 	can I have been zipping?
can you have been zipping?
can she have been zipping?
can we have been zipping?
can you have been zipping?
can they have been zipping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I zip?
can't you zip?
can't she zip?
can't we zip?
can't you zip?
can't they zip? 	can't I be zipping?
can't you be zipping?
can't she be zipping?
can't we be zipping?
can't you be zipping?
can't they be zipping? 	can't I have zipped?
can't you have zipped?
can't she have zipped?
can't we have zipped?
can't you have zipped?
can't they have zipped? 	can't I have been zipping?
can't you have been zipping?
can't she have been zipping?
can't we have been zipping?
can't you have been zipping?
can't they have been zipping?