English verb conjugation
MUST DISUSE

Regular verb: disuse - disused - disused

Affirmation

Simple form	V-ing form
I must disuse you must disuse he must disuse we must disuse you must disuse they must disuse	I must be disusing you must be disusing he must be disusing we must be disusing you must be disusing they must be disusing
Perfect	V-ing perfect
I must have disused you must have disused he must have disused we must have disused you must have disused they must have disused	I must have been disusing you must have been disusing he must have been disusing we must have been disusing you must have been disusing they must have been disusing

Negation

Simple form	V-ing form
I mustn't disuse you mustn't disuse he mustn't disuse we mustn't disuse you mustn't disuse they mustn't disuse	I mustn't be disusing you mustn't be disusing he mustn't be disusing we mustn't be disusing you mustn't be disusing they mustn't be disusing
Perfect	V-ing perfect
I mustn't have disused you mustn't have disused he mustn't have disused we mustn't have disused you mustn't have disused they mustn't have disused	I mustn't have been disusing you mustn't have been disusing he mustn't have been disusing we mustn't have been disusing you mustn't have been disusing they mustn't have been disusing

Interrogative form

Simple form	V-ing form
must I disuse? must you disuse? must he disuse? must we disuse? must you disuse? must they disuse?	must I be disusing? must you be disusing? must he be disusing? must we be disusing? must you be disusing? must they be disusing?
Perfect	V-ing perfect
must I have disused? must you have disused? must he have disused? must we have disused? must you have disused? must they have disused?	must I have been disusing? must you have been disusing? must he have been disusing? must we have been disusing? must you have been disusing? must they have been disusing?

Interro-negative form

Simple form	V-ing form
mustn't I disuse? mustn't you disuse? mustn't he disuse? mustn't we disuse? mustn't you disuse? mustn't they disuse?	mustn't I be disusing? mustn't you be disusing? mustn't he be disusing? mustn't we be disusing? mustn't you be disusing? mustn't they be disusing?
Perfect	V-ing perfect
mustn't I have disused? mustn't you have disused? mustn't he have disused? mustn't we have disused? mustn't you have disused? mustn't they have disused?	mustn't I have been disusing? mustn't you have been disusing? mustn't he have been disusing? mustn't we have been disusing? mustn't you have been disusing? mustn't they have been disusing?