English verb conjugation
MUST DOOM

Regular verb: doom - doomed - doomed

Affirmation

Simple form	V-ing form
I must doom you must doom she must doom we must doom you must doom they must doom	I must be dooming you must be dooming she must be dooming we must be dooming you must be dooming they must be dooming
Perfect	V-ing perfect
I must have doomed you must have doomed she must have doomed we must have doomed you must have doomed they must have doomed	I must have been dooming you must have been dooming she must have been dooming we must have been dooming you must have been dooming they must have been dooming

Negation

Simple form	V-ing form
I mustn't doom you mustn't doom she mustn't doom we mustn't doom you mustn't doom they mustn't doom	I mustn't be dooming you mustn't be dooming she mustn't be dooming we mustn't be dooming you mustn't be dooming they mustn't be dooming
Perfect	V-ing perfect
I mustn't have doomed you mustn't have doomed she mustn't have doomed we mustn't have doomed you mustn't have doomed they mustn't have doomed	I mustn't have been dooming you mustn't have been dooming she mustn't have been dooming we mustn't have been dooming you mustn't have been dooming they mustn't have been dooming

Interrogative form

Simple form	V-ing form
must I doom? must you doom? must she doom? must we doom? must you doom? must they doom?	must I be dooming? must you be dooming? must she be dooming? must we be dooming? must you be dooming? must they be dooming?
Perfect	V-ing perfect
must I have doomed? must you have doomed? must she have doomed? must we have doomed? must you have doomed? must they have doomed?	must I have been dooming? must you have been dooming? must she have been dooming? must we have been dooming? must you have been dooming? must they have been dooming?

Interro-negative form

Simple form	V-ing form
mustn't I doom? mustn't you doom? mustn't she doom? mustn't we doom? mustn't you doom? mustn't they doom?	mustn't I be dooming? mustn't you be dooming? mustn't she be dooming? mustn't we be dooming? mustn't you be dooming? mustn't they be dooming?
Perfect	V-ing perfect
mustn't I have doomed? mustn't you have doomed? mustn't she have doomed? mustn't we have doomed? mustn't you have doomed? mustn't they have doomed?	mustn't I have been dooming? mustn't you have been dooming? mustn't she have been dooming? mustn't we have been dooming? mustn't you have been dooming? mustn't they have been dooming?