English verb conjugation
MUST UNPACK

Regular verb: unpack - unpacked - unpacked

Affirmation

Simple form	V-ing form
I must unpack you must unpack he must unpack we must unpack you must unpack they must unpack	I must be unpacking you must be unpacking he must be unpacking we must be unpacking you must be unpacking they must be unpacking
Perfect	V-ing perfect
I must have unpacked you must have unpacked he must have unpacked we must have unpacked you must have unpacked they must have unpacked	I must have been unpacking you must have been unpacking he must have been unpacking we must have been unpacking you must have been unpacking they must have been unpacking

Negation

Simple form	V-ing form
I mustn't unpack you mustn't unpack he mustn't unpack we mustn't unpack you mustn't unpack they mustn't unpack	I mustn't be unpacking you mustn't be unpacking he mustn't be unpacking we mustn't be unpacking you mustn't be unpacking they mustn't be unpacking
Perfect	V-ing perfect
I mustn't have unpacked you mustn't have unpacked he mustn't have unpacked we mustn't have unpacked you mustn't have unpacked they mustn't have unpacked	I mustn't have been unpacking you mustn't have been unpacking he mustn't have been unpacking we mustn't have been unpacking you mustn't have been unpacking they mustn't have been unpacking

Interrogative form

Simple form	V-ing form
must I unpack? must you unpack? must he unpack? must we unpack? must you unpack? must they unpack?	must I be unpacking? must you be unpacking? must he be unpacking? must we be unpacking? must you be unpacking? must they be unpacking?
Perfect	V-ing perfect
must I have unpacked? must you have unpacked? must he have unpacked? must we have unpacked? must you have unpacked? must they have unpacked?	must I have been unpacking? must you have been unpacking? must he have been unpacking? must we have been unpacking? must you have been unpacking? must they have been unpacking?

Interro-negative form

Simple form	V-ing form
mustn't I unpack? mustn't you unpack? mustn't he unpack? mustn't we unpack? mustn't you unpack? mustn't they unpack?	mustn't I be unpacking? mustn't you be unpacking? mustn't he be unpacking? mustn't we be unpacking? mustn't you be unpacking? mustn't they be unpacking?
Perfect	V-ing perfect
mustn't I have unpacked? mustn't you have unpacked? mustn't he have unpacked? mustn't we have unpacked? mustn't you have unpacked? mustn't they have unpacked?	mustn't I have been unpacking? mustn't you have been unpacking? mustn't he have been unpacking? mustn't we have been unpacking? mustn't you have been unpacking? mustn't they have been unpacking?