English verb conjugation
MUST FLUSTER

Regular verb: fluster - flustered - flustered

Affirmation

Simple form	V-ing form
I must fluster you must fluster she must fluster we must fluster you must fluster they must fluster	I must be flustering you must be flustering she must be flustering we must be flustering you must be flustering they must be flustering
Perfect	V-ing perfect
I must have flustered you must have flustered she must have flustered we must have flustered you must have flustered they must have flustered	I must have been flustering you must have been flustering she must have been flustering we must have been flustering you must have been flustering they must have been flustering

Negation

Simple form	V-ing form
I must not fluster you must not fluster she must not fluster we must not fluster you must not fluster they must not fluster	I must not be flustering you must not be flustering she must not be flustering we must not be flustering you must not be flustering they must not be flustering
Perfect	V-ing perfect
I must not have flustered you must not have flustered she must not have flustered we must not have flustered you must not have flustered they must not have flustered	I must not have been flustering you must not have been flustering she must not have been flustering we must not have been flustering you must not have been flustering they must not have been flustering

Interrogative form

Simple form	V-ing form
must I fluster? must you fluster? must she fluster? must we fluster? must you fluster? must they fluster?	must I be flustering? must you be flustering? must she be flustering? must we be flustering? must you be flustering? must they be flustering?
Perfect	V-ing perfect
must I have flustered? must you have flustered? must she have flustered? must we have flustered? must you have flustered? must they have flustered?	must I have been flustering? must you have been flustering? must she have been flustering? must we have been flustering? must you have been flustering? must they have been flustering?

Interro-negative form

Simple form	V-ing form
must I not fluster? must you not fluster? must she not fluster? must we not fluster? must you not fluster? must they not fluster?	must I not be flustering? must you not be flustering? must she not be flustering? must we not be flustering? must you not be flustering? must they not be flustering?
Perfect	V-ing perfect
must I not have flustered? must you not have flustered? must she not have flustered? must we not have flustered? must you not have flustered? must they not have flustered?	must I not have been flustering? must you not have been flustering? must she not have been flustering? must we not have been flustering? must you not have been flustering? must they not have been flustering?