English verb conjugation
MUST HEADQUARTER

Regular verb: headquarter - headquartered - headquartered

Affirmation

Simple form	V-ing form
I must headquarter you must headquarter she must headquarter we must headquarter you must headquarter they must headquarter	I must be headquartering you must be headquartering she must be headquartering we must be headquartering you must be headquartering they must be headquartering
Perfect	V-ing perfect
I must have headquartered you must have headquartered she must have headquartered we must have headquartered you must have headquartered they must have headquartered	I must have been headquartering you must have been headquartering she must have been headquartering we must have been headquartering you must have been headquartering they must have been headquartering

Negation

Simple form	V-ing form
I mustn't headquarter you mustn't headquarter she mustn't headquarter we mustn't headquarter you mustn't headquarter they mustn't headquarter	I mustn't be headquartering you mustn't be headquartering she mustn't be headquartering we mustn't be headquartering you mustn't be headquartering they mustn't be headquartering
Perfect	V-ing perfect
I mustn't have headquartered you mustn't have headquartered she mustn't have headquartered we mustn't have headquartered you mustn't have headquartered they mustn't have headquartered	I mustn't have been headquartering you mustn't have been headquartering she mustn't have been headquartering we mustn't have been headquartering you mustn't have been headquartering they mustn't have been headquartering

Interrogative form

Simple form	V-ing form
must I headquarter? must you headquarter? must she headquarter? must we headquarter? must you headquarter? must they headquarter?	must I be headquartering? must you be headquartering? must she be headquartering? must we be headquartering? must you be headquartering? must they be headquartering?
Perfect	V-ing perfect
must I have headquartered? must you have headquartered? must she have headquartered? must we have headquartered? must you have headquartered? must they have headquartered?	must I have been headquartering? must you have been headquartering? must she have been headquartering? must we have been headquartering? must you have been headquartering? must they have been headquartering?

Interro-negative form

Simple form	V-ing form
mustn't I headquarter? mustn't you headquarter? mustn't she headquarter? mustn't we headquarter? mustn't you headquarter? mustn't they headquarter?	mustn't I be headquartering? mustn't you be headquartering? mustn't she be headquartering? mustn't we be headquartering? mustn't you be headquartering? mustn't they be headquartering?
Perfect	V-ing perfect
mustn't I have headquartered? mustn't you have headquartered? mustn't she have headquartered? mustn't we have headquartered? mustn't you have headquartered? mustn't they have headquartered?	mustn't I have been headquartering? mustn't you have been headquartering? mustn't she have been headquartering? mustn't we have been headquartering? mustn't you have been headquartering? mustn't they have been headquartering?