should zip
Regular verb: zip - zipped- zipped

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not zip
you should not zip
he should not zip
we should not zip
you should not zip
they should not zip 	I should not be zipping
you should not be zipping
he should not be zipping
we should not be zipping
you should not be zipping
they should not be zipping	I should not have zipped
you should not have zipped
he should not have zipped
we should not have zipped
you should not have zipped
they should not have zipped	I should not have been zipping
you should not have been zipping
he should not have been zipping
we should not have been zipping
you should not have been zipping
they should not have been zipping	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not zip?
should you not zip?
should he not zip?
should we not zip?
should you not zip?
should they not zip? 	should I not be zipping?
should you not be zipping?
should he not be zipping?
should we not be zipping?
should you not be zipping?
should they not be zipping? 	should I not have zipped?
should you not have zipped?
should he not have zipped?
should we not have zipped?
should you not have zipped?
should they not have zipped? 	should I not have been zipping?
should you not have been zipping?
should he not have been zipping?
should we not have been zipping?
should you not have been zipping?
should they not have been zipping?