English verb conjugation
MUST STAGGER

Regular verb: stagger - staggered - staggered

Affirmation

Simple form	V-ing form
I must stagger you must stagger he must stagger we must stagger you must stagger they must stagger	I must be staggering you must be staggering he must be staggering we must be staggering you must be staggering they must be staggering
Perfect	V-ing perfect
I must have staggered you must have staggered he must have staggered we must have staggered you must have staggered they must have staggered	I must have been staggering you must have been staggering he must have been staggering we must have been staggering you must have been staggering they must have been staggering

Negation

Simple form	V-ing form
I mustn't stagger you mustn't stagger he mustn't stagger we mustn't stagger you mustn't stagger they mustn't stagger	I mustn't be staggering you mustn't be staggering he mustn't be staggering we mustn't be staggering you mustn't be staggering they mustn't be staggering
Perfect	V-ing perfect
I mustn't have staggered you mustn't have staggered he mustn't have staggered we mustn't have staggered you mustn't have staggered they mustn't have staggered	I mustn't have been staggering you mustn't have been staggering he mustn't have been staggering we mustn't have been staggering you mustn't have been staggering they mustn't have been staggering

Interrogative form

Simple form	V-ing form
must I stagger? must you stagger? must he stagger? must we stagger? must you stagger? must they stagger?	must I be staggering? must you be staggering? must he be staggering? must we be staggering? must you be staggering? must they be staggering?
Perfect	V-ing perfect
must I have staggered? must you have staggered? must he have staggered? must we have staggered? must you have staggered? must they have staggered?	must I have been staggering? must you have been staggering? must he have been staggering? must we have been staggering? must you have been staggering? must they have been staggering?

Interro-negative form

Simple form	V-ing form
mustn't I stagger? mustn't you stagger? mustn't he stagger? mustn't we stagger? mustn't you stagger? mustn't they stagger?	mustn't I be staggering? mustn't you be staggering? mustn't he be staggering? mustn't we be staggering? mustn't you be staggering? mustn't they be staggering?
Perfect	V-ing perfect
mustn't I have staggered? mustn't you have staggered? mustn't he have staggered? mustn't we have staggered? mustn't you have staggered? mustn't they have staggered?	mustn't I have been staggering? mustn't you have been staggering? mustn't he have been staggering? mustn't we have been staggering? mustn't you have been staggering? mustn't they have been staggering?