English verb conjugation
CAN ZIP

Regular verb: zip - zipped - zipped

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?