English verb conjugation
MUST FALTER

Regular verb: falter - faltered - faltered

Affirmation

Simple form	V-ing form
I must falter you must falter he must falter we must falter you must falter they must falter	I must be faltering you must be faltering he must be faltering we must be faltering you must be faltering they must be faltering
Perfect	V-ing perfect
I must have faltered you must have faltered he must have faltered we must have faltered you must have faltered they must have faltered	I must have been faltering you must have been faltering he must have been faltering we must have been faltering you must have been faltering they must have been faltering

Negation

Simple form	V-ing form
I mustn't falter you mustn't falter he mustn't falter we mustn't falter you mustn't falter they mustn't falter	I mustn't be faltering you mustn't be faltering he mustn't be faltering we mustn't be faltering you mustn't be faltering they mustn't be faltering
Perfect	V-ing perfect
I mustn't have faltered you mustn't have faltered he mustn't have faltered we mustn't have faltered you mustn't have faltered they mustn't have faltered	I mustn't have been faltering you mustn't have been faltering he mustn't have been faltering we mustn't have been faltering you mustn't have been faltering they mustn't have been faltering

Interrogative form

Simple form	V-ing form
must I falter? must you falter? must he falter? must we falter? must you falter? must they falter?	must I be faltering? must you be faltering? must he be faltering? must we be faltering? must you be faltering? must they be faltering?
Perfect	V-ing perfect
must I have faltered? must you have faltered? must he have faltered? must we have faltered? must you have faltered? must they have faltered?	must I have been faltering? must you have been faltering? must he have been faltering? must we have been faltering? must you have been faltering? must they have been faltering?

Interro-negative form

Simple form	V-ing form
mustn't I falter? mustn't you falter? mustn't he falter? mustn't we falter? mustn't you falter? mustn't they falter?	mustn't I be faltering? mustn't you be faltering? mustn't he be faltering? mustn't we be faltering? mustn't you be faltering? mustn't they be faltering?
Perfect	V-ing perfect
mustn't I have faltered? mustn't you have faltered? mustn't he have faltered? mustn't we have faltered? mustn't you have faltered? mustn't they have faltered?	mustn't I have been faltering? mustn't you have been faltering? mustn't he have been faltering? mustn't we have been faltering? mustn't you have been faltering? mustn't they have been faltering?