English verb conjugation
MUST UNZIP

Regular verb: unzip - unziped - unziped

Affirmation

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

Negation

Simple form	V-ing form
I must not unzip you must not unzip he must not unzip we must not unzip you must not unzip they must not unzip	I must not be unziping you must not be unziping he must not be unziping we must not be unziping you must not be unziping they must not be unziping
Perfect	V-ing perfect
I must not have unziped you must not have unziped he must not have unziped we must not have unziped you must not have unziped they must not have unziped	I must not have been unziping you must not have been unziping he must not have been unziping we must not have been unziping you must not have been unziping they must not have been unziping

Interrogative form

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

Interro-negative form

Simple form	V-ing form
must I not unzip? must you not unzip? must he not unzip? must we not unzip? must you not unzip? must they not unzip?	must I not be unziping? must you not be unziping? must he not be unziping? must we not be unziping? must you not be unziping? must they not be unziping?
Perfect	V-ing perfect
must I not have unziped? must you not have unziped? must he not have unziped? must we not have unziped? must you not have unziped? must they not have unziped?	must I not have been unziping? must you not have been unziping? must he not have been unziping? must we not have been unziping? must you not have been unziping? must they not have been unziping?