English verb conjugation
MUST FEVER

Regular verb: fever - fevered - fevered

Affirmation

Simple form	V-ing form
I must fever you must fever he must fever we must fever you must fever they must fever	I must be fevering you must be fevering he must be fevering we must be fevering you must be fevering they must be fevering
Perfect	V-ing perfect
I must have fevered you must have fevered he must have fevered we must have fevered you must have fevered they must have fevered	I must have been fevering you must have been fevering he must have been fevering we must have been fevering you must have been fevering they must have been fevering

Negation

Simple form	V-ing form
I mustn't fever you mustn't fever he mustn't fever we mustn't fever you mustn't fever they mustn't fever	I mustn't be fevering you mustn't be fevering he mustn't be fevering we mustn't be fevering you mustn't be fevering they mustn't be fevering
Perfect	V-ing perfect
I mustn't have fevered you mustn't have fevered he mustn't have fevered we mustn't have fevered you mustn't have fevered they mustn't have fevered	I mustn't have been fevering you mustn't have been fevering he mustn't have been fevering we mustn't have been fevering you mustn't have been fevering they mustn't have been fevering

Interrogative form

Simple form	V-ing form
must I fever? must you fever? must he fever? must we fever? must you fever? must they fever?	must I be fevering? must you be fevering? must he be fevering? must we be fevering? must you be fevering? must they be fevering?
Perfect	V-ing perfect
must I have fevered? must you have fevered? must he have fevered? must we have fevered? must you have fevered? must they have fevered?	must I have been fevering? must you have been fevering? must he have been fevering? must we have been fevering? must you have been fevering? must they have been fevering?

Interro-negative form

Simple form	V-ing form
mustn't I fever? mustn't you fever? mustn't he fever? mustn't we fever? mustn't you fever? mustn't they fever?	mustn't I be fevering? mustn't you be fevering? mustn't he be fevering? mustn't we be fevering? mustn't you be fevering? mustn't they be fevering?
Perfect	V-ing perfect
mustn't I have fevered? mustn't you have fevered? mustn't he have fevered? mustn't we have fevered? mustn't you have fevered? mustn't they have fevered?	mustn't I have been fevering? mustn't you have been fevering? mustn't he have been fevering? mustn't we have been fevering? mustn't you have been fevering? mustn't they have been fevering?