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