English verb conjugation
MUST FLITTER

Regular verb: flitter - flittered - flittered

Affirmation

Simple form	V-ing form
I must flitter you must flitter he must flitter we must flitter you must flitter they must flitter	I must be flittering you must be flittering he must be flittering we must be flittering you must be flittering they must be flittering
Perfect	V-ing perfect
I must have flittered you must have flittered he must have flittered we must have flittered you must have flittered they must have flittered	I must have been flittering you must have been flittering he must have been flittering we must have been flittering you must have been flittering they must have been flittering

Negation

Simple form	V-ing form
I mustn't flitter you mustn't flitter he mustn't flitter we mustn't flitter you mustn't flitter they mustn't flitter	I mustn't be flittering you mustn't be flittering he mustn't be flittering we mustn't be flittering you mustn't be flittering they mustn't be flittering
Perfect	V-ing perfect
I mustn't have flittered you mustn't have flittered he mustn't have flittered we mustn't have flittered you mustn't have flittered they mustn't have flittered	I mustn't have been flittering you mustn't have been flittering he mustn't have been flittering we mustn't have been flittering you mustn't have been flittering they mustn't have been flittering

Interrogative form

Simple form	V-ing form
must I flitter? must you flitter? must he flitter? must we flitter? must you flitter? must they flitter?	must I be flittering? must you be flittering? must he be flittering? must we be flittering? must you be flittering? must they be flittering?
Perfect	V-ing perfect
must I have flittered? must you have flittered? must he have flittered? must we have flittered? must you have flittered? must they have flittered?	must I have been flittering? must you have been flittering? must he have been flittering? must we have been flittering? must you have been flittering? must they have been flittering?

Interro-negative form

Simple form	V-ing form
mustn't I flitter? mustn't you flitter? mustn't he flitter? mustn't we flitter? mustn't you flitter? mustn't they flitter?	mustn't I be flittering? mustn't you be flittering? mustn't he be flittering? mustn't we be flittering? mustn't you be flittering? mustn't they be flittering?
Perfect	V-ing perfect
mustn't I have flittered? mustn't you have flittered? mustn't he have flittered? mustn't we have flittered? mustn't you have flittered? mustn't they have flittered?	mustn't I have been flittering? mustn't you have been flittering? mustn't he have been flittering? mustn't we have been flittering? mustn't you have been flittering? mustn't they have been flittering?