English verb conjugation
SHOULD UNZIP

Regular verb: unzip - unziped - unziped

Affirmation

Simple form	V-ing form
I'd unzip you'd unzip he'd unzip we'd unzip you'd unzip they'd unzip	I'd be unziping you'd be unziping he'd be unziping we'd be unziping you'd be unziping they'd be unziping
Perfect	V-ing perfect
I should've unziped you should've unziped he should've unziped we should've unziped you should've unziped they should've unziped	I should've been unziping you should've been unziping he should've been unziping we should've been unziping you should've been unziping they should've been unziping

Negation

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

Interrogative form

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

Interro-negative form

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