I must boom you must boom she must boom we must boom you must boom they must boom
Forme en V-ing
I must be booming you must be booming she must be booming we must be booming you must be booming they must be booming
Perfect
I must have boomed you must have boomed she must have boomed we must have boomed you must have boomed they must have boomed
Perfect en V-ing
I must have been booming you must have been booming she must have been booming we must have been booming you must have been booming they must have been booming
Négation
Forme simple
I must not boom you must not boom she must not boom we must not boom you must not boom they must not boom
Forme en V-ing
I must not be booming you must not be booming she must not be booming we must not be booming you must not be booming they must not be booming
Perfect
I must not have boomed you must not have boomed she must not have boomed we must not have boomed you must not have boomed they must not have boomed
Perfect en V-ing
I must not have been booming you must not have been booming she must not have been booming we must not have been booming you must not have been booming they must not have been booming
Forme interrogative
Forme simple
must I boom? must you boom? must she boom? must we boom? must you boom? must they boom?
Forme en V-ing
must I be booming? must you be booming? must she be booming? must we be booming? must you be booming? must they be booming?
Perfect
must I have boomed? must you have boomed? must she have boomed? must we have boomed? must you have boomed? must they have boomed?
Perfect en V-ing
must I have been booming? must you have been booming? must she have been booming? must we have been booming? must you have been booming? must they have been booming?
Forme interro-négative
Forme simple
must I not boom? must you not boom? must she not boom? must we not boom? must you not boom? must they not boom?
Forme en V-ing
must I not be booming? must you not be booming? must she not be booming? must we not be booming? must you not be booming? must they not be booming?
Perfect
must I not have boomed? must you not have boomed? must she not have boomed? must we not have boomed? must you not have boomed? must they not have boomed?
Perfect en V-ing
must I not have been booming? must you not have been booming? must she not have been booming? must we not have been booming? must you not have been booming? must they not have been booming?