English verb conjugation
MUST LOUSE

Regular verb: louse - loused - loused

Affirmation

Simple form	V-ing form
I must louse you must louse he must louse we must louse you must louse they must louse	I must be lousing you must be lousing he must be lousing we must be lousing you must be lousing they must be lousing
Perfect	V-ing perfect
I must have loused you must have loused he must have loused we must have loused you must have loused they must have loused	I must have been lousing you must have been lousing he must have been lousing we must have been lousing you must have been lousing they must have been lousing

Negation

Simple form	V-ing form
I mustn't louse you mustn't louse he mustn't louse we mustn't louse you mustn't louse they mustn't louse	I mustn't be lousing you mustn't be lousing he mustn't be lousing we mustn't be lousing you mustn't be lousing they mustn't be lousing
Perfect	V-ing perfect
I mustn't have loused you mustn't have loused he mustn't have loused we mustn't have loused you mustn't have loused they mustn't have loused	I mustn't have been lousing you mustn't have been lousing he mustn't have been lousing we mustn't have been lousing you mustn't have been lousing they mustn't have been lousing

Interrogative form

Simple form	V-ing form
must I louse? must you louse? must he louse? must we louse? must you louse? must they louse?	must I be lousing? must you be lousing? must he be lousing? must we be lousing? must you be lousing? must they be lousing?
Perfect	V-ing perfect
must I have loused? must you have loused? must he have loused? must we have loused? must you have loused? must they have loused?	must I have been lousing? must you have been lousing? must he have been lousing? must we have been lousing? must you have been lousing? must they have been lousing?

Interro-negative form

Simple form	V-ing form
mustn't I louse? mustn't you louse? mustn't he louse? mustn't we louse? mustn't you louse? mustn't they louse?	mustn't I be lousing? mustn't you be lousing? mustn't he be lousing? mustn't we be lousing? mustn't you be lousing? mustn't they be lousing?
Perfect	V-ing perfect
mustn't I have loused? mustn't you have loused? mustn't he have loused? mustn't we have loused? mustn't you have loused? mustn't they have loused?	mustn't I have been lousing? mustn't you have been lousing? mustn't he have been lousing? mustn't we have been lousing? mustn't you have been lousing? mustn't they have been lousing?