English verb conjugation
CAN UNZIP

Regular verb: unzip - unziped - unziped

Affirmation

Simple form	V-ing form
I can unzip you can unzip he can unzip we can unzip you can unzip they can unzip	I can be unziping you can be unziping he can be unziping we can be unziping you can be unziping they can be unziping
Perfect	V-ing perfect
I can have unziped you can have unziped he can have unziped we can have unziped you can have unziped they can have unziped	I can have been unziping you can have been unziping he can have been unziping we can have been unziping you can have been unziping they can have been unziping

Negation

Simple form	V-ing form
I can't unzip you can't unzip he can't unzip we can't unzip you can't unzip they can't unzip	I can't be unziping you can't be unziping he can't be unziping we can't be unziping you can't be unziping they can't be unziping
Perfect	V-ing perfect
I can't have unziped you can't have unziped he can't have unziped we can't have unziped you can't have unziped they can't have unziped	I can't have been unziping you can't have been unziping he can't have been unziping we can't have been unziping you can't have been unziping they can't have been unziping

Interrogative form

Simple form	V-ing form
can I unzip? can you unzip? can he unzip? can we unzip? can you unzip? can they unzip?	can I be unziping? can you be unziping? can he be unziping? can we be unziping? can you be unziping? can they be unziping?
Perfect	V-ing perfect
can I have unziped? can you have unziped? can he have unziped? can we have unziped? can you have unziped? can they have unziped?	can I have been unziping? can you have been unziping? can he have been unziping? can we have been unziping? can you have been unziping? can they have been unziping?

Interro-negative form

Simple form	V-ing form
can't I unzip? can't you unzip? can't he unzip? can't we unzip? can't you unzip? can't they unzip?	can't I be unziping? can't you be unziping? can't he be unziping? can't we be unziping? can't you be unziping? can't they be unziping?
Perfect	V-ing perfect
can't I have unziped? can't you have unziped? can't he have unziped? can't we have unziped? can't you have unziped? can't they have unziped?	can't I have been unziping? can't you have been unziping? can't he have been unziping? can't we have been unziping? can't you have been unziping? can't they have been unziping?