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 must not culm you must not culm he must not culm we must not culm you must not culm they must not culm	I must not be culming you must not be culming he must not be culming we must not be culming you must not be culming they must not be culming
Perfect	V-ing perfect
I must not have culmed you must not have culmed he must not have culmed we must not have culmed you must not have culmed they must not have culmed	I must not have been culming you must not have been culming he must not have been culming we must not have been culming you must not have been culming they must not 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
must I not culm? must you not culm? must he not culm? must we not culm? must you not culm? must they not culm?	must I not be culming? must you not be culming? must he not be culming? must we not be culming? must you not be culming? must they not be culming?
Perfect	V-ing perfect
must I not have culmed? must you not have culmed? must he not have culmed? must we not have culmed? must you not have culmed? must they not have culmed?	must I not have been culming? must you not have been culming? must he not have been culming? must we not have been culming? must you not have been culming? must they not have been culming?