English verb conjugation
MUST CULM

Regular verb: culm - culmed - culmed

Affirmation

Simple form	V-ing form
I must culm you must culm he must culm we must culm you must culm they must culm	I must be culming you must be culming he must be culming we must be culming you must be culming they must be culming
Perfect	V-ing perfect
I must have culmed you must have culmed he must have culmed we must have culmed you must have culmed they must have culmed	I must have been culming you must have been culming he must have been culming we must have been culming you must have been culming they must have been culming

Negation

Simple form	V-ing form
I mustn't culm you mustn't culm he mustn't culm we mustn't culm you mustn't culm they mustn't culm	I mustn't be culming you mustn't be culming he mustn't be culming we mustn't be culming you mustn't be culming they mustn't be culming
Perfect	V-ing perfect
I mustn't have culmed you mustn't have culmed he mustn't have culmed we mustn't have culmed you mustn't have culmed they mustn't have culmed	I mustn't have been culming you mustn't have been culming he mustn't have been culming we mustn't have been culming you mustn't have been culming they mustn't have been culming

Interrogative form

Simple form	V-ing form
must I culm? must you culm? must he culm? must we culm? must you culm? must they culm?	must I be culming? must you be culming? must he be culming? must we be culming? must you be culming? must they be culming?
Perfect	V-ing perfect
must I have culmed? must you have culmed? must he have culmed? must we have culmed? must you have culmed? must they have culmed?	must I have been culming? must you have been culming? must he have been culming? must we have been culming? must you have been culming? must they have been culming?

Interro-negative form

Simple form	V-ing form
mustn't I culm? mustn't you culm? mustn't he culm? mustn't we culm? mustn't you culm? mustn't they culm?	mustn't I be culming? mustn't you be culming? mustn't he be culming? mustn't we be culming? mustn't you be culming? mustn't they be culming?
Perfect	V-ing perfect
mustn't I have culmed? mustn't you have culmed? mustn't he have culmed? mustn't we have culmed? mustn't you have culmed? mustn't they have culmed?	mustn't I have been culming? mustn't you have been culming? mustn't he have been culming? mustn't we have been culming? mustn't you have been culming? mustn't they have been culming?