English verb conjugation
MUST DOOM

Regular verb: doom - doomed - doomed

Affirmation

Simple form	V-ing form
I must doom you must doom he must doom we must doom you must doom they must doom	I must be dooming you must be dooming he 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 he 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 he 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 he 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 he 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 he 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 he 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 he doom? must we doom? must you doom? must they doom?	must I be dooming? must you be dooming? must he 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 he 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 he 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 he 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 he 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 he 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 he have been dooming? mustn't we have been dooming? mustn't you have been dooming? mustn't they have been dooming?