English verb conjugation
MUST FUME

Regular verb: fume - fumed - fumed

Affirmation

Simple form	V-ing form
I must fume you must fume he must fume we must fume you must fume they must fume	I must be fuming you must be fuming he must be fuming we must be fuming you must be fuming they must be fuming
Perfect	V-ing perfect
I must have fumed you must have fumed he must have fumed we must have fumed you must have fumed they must have fumed	I must have been fuming you must have been fuming he must have been fuming we must have been fuming you must have been fuming they must have been fuming

Negation

Simple form	V-ing form
I mustn't fume you mustn't fume he mustn't fume we mustn't fume you mustn't fume they mustn't fume	I mustn't be fuming you mustn't be fuming he mustn't be fuming we mustn't be fuming you mustn't be fuming they mustn't be fuming
Perfect	V-ing perfect
I mustn't have fumed you mustn't have fumed he mustn't have fumed we mustn't have fumed you mustn't have fumed they mustn't have fumed	I mustn't have been fuming you mustn't have been fuming he mustn't have been fuming we mustn't have been fuming you mustn't have been fuming they mustn't have been fuming

Interrogative form

Simple form	V-ing form
must I fume? must you fume? must he fume? must we fume? must you fume? must they fume?	must I be fuming? must you be fuming? must he be fuming? must we be fuming? must you be fuming? must they be fuming?
Perfect	V-ing perfect
must I have fumed? must you have fumed? must he have fumed? must we have fumed? must you have fumed? must they have fumed?	must I have been fuming? must you have been fuming? must he have been fuming? must we have been fuming? must you have been fuming? must they have been fuming?

Interro-negative form

Simple form	V-ing form
mustn't I fume? mustn't you fume? mustn't he fume? mustn't we fume? mustn't you fume? mustn't they fume?	mustn't I be fuming? mustn't you be fuming? mustn't he be fuming? mustn't we be fuming? mustn't you be fuming? mustn't they be fuming?
Perfect	V-ing perfect
mustn't I have fumed? mustn't you have fumed? mustn't he have fumed? mustn't we have fumed? mustn't you have fumed? mustn't they have fumed?	mustn't I have been fuming? mustn't you have been fuming? mustn't he have been fuming? mustn't we have been fuming? mustn't you have been fuming? mustn't they have been fuming?