English verb conjugation
MUST LUSTER

Regular verb: luster - lustered - lustered

Affirmation

Simple form	V-ing form
I must luster you must luster she must luster we must luster you must luster they must luster	I must be lustering you must be lustering she must be lustering we must be lustering you must be lustering they must be lustering
Perfect	V-ing perfect
I must have lustered you must have lustered she must have lustered we must have lustered you must have lustered they must have lustered	I must have been lustering you must have been lustering she must have been lustering we must have been lustering you must have been lustering they must have been lustering

Negation

Simple form	V-ing form
I mustn't luster you mustn't luster she mustn't luster we mustn't luster you mustn't luster they mustn't luster	I mustn't be lustering you mustn't be lustering she mustn't be lustering we mustn't be lustering you mustn't be lustering they mustn't be lustering
Perfect	V-ing perfect
I mustn't have lustered you mustn't have lustered she mustn't have lustered we mustn't have lustered you mustn't have lustered they mustn't have lustered	I mustn't have been lustering you mustn't have been lustering she mustn't have been lustering we mustn't have been lustering you mustn't have been lustering they mustn't have been lustering

Interrogative form

Simple form	V-ing form
must I luster? must you luster? must she luster? must we luster? must you luster? must they luster?	must I be lustering? must you be lustering? must she be lustering? must we be lustering? must you be lustering? must they be lustering?
Perfect	V-ing perfect
must I have lustered? must you have lustered? must she have lustered? must we have lustered? must you have lustered? must they have lustered?	must I have been lustering? must you have been lustering? must she have been lustering? must we have been lustering? must you have been lustering? must they have been lustering?

Interro-negative form

Simple form	V-ing form
mustn't I luster? mustn't you luster? mustn't she luster? mustn't we luster? mustn't you luster? mustn't they luster?	mustn't I be lustering? mustn't you be lustering? mustn't she be lustering? mustn't we be lustering? mustn't you be lustering? mustn't they be lustering?
Perfect	V-ing perfect
mustn't I have lustered? mustn't you have lustered? mustn't she have lustered? mustn't we have lustered? mustn't you have lustered? mustn't they have lustered?	mustn't I have been lustering? mustn't you have been lustering? mustn't she have been lustering? mustn't we have been lustering? mustn't you have been lustering? mustn't they have been lustering?