I must sadden you must sadden she must sadden we must sadden you must sadden they must sadden
Forme en V-ing
I must be saddening you must be saddening she must be saddening we must be saddening you must be saddening they must be saddening
Perfect
I must have saddened you must have saddened she must have saddened we must have saddened you must have saddened they must have saddened
Perfect en V-ing
I must have been saddening you must have been saddening she must have been saddening we must have been saddening you must have been saddening they must have been saddening
Négation
Forme simple
I must not sadden you must not sadden she must not sadden we must not sadden you must not sadden they must not sadden
Forme en V-ing
I must not be saddening you must not be saddening she must not be saddening we must not be saddening you must not be saddening they must not be saddening
Perfect
I must not have saddened you must not have saddened she must not have saddened we must not have saddened you must not have saddened they must not have saddened
Perfect en V-ing
I must not have been saddening you must not have been saddening she must not have been saddening we must not have been saddening you must not have been saddening they must not have been saddening
Forme interrogative
Forme simple
must I sadden? must you sadden? must she sadden? must we sadden? must you sadden? must they sadden?
Forme en V-ing
must I be saddening? must you be saddening? must she be saddening? must we be saddening? must you be saddening? must they be saddening?
Perfect
must I have saddened? must you have saddened? must she have saddened? must we have saddened? must you have saddened? must they have saddened?
Perfect en V-ing
must I have been saddening? must you have been saddening? must she have been saddening? must we have been saddening? must you have been saddening? must they have been saddening?
Forme interro-négative
Forme simple
must I not sadden? must you not sadden? must she not sadden? must we not sadden? must you not sadden? must they not sadden?
Forme en V-ing
must I not be saddening? must you not be saddening? must she not be saddening? must we not be saddening? must you not be saddening? must they not be saddening?
Perfect
must I not have saddened? must you not have saddened? must she not have saddened? must we not have saddened? must you not have saddened? must they not have saddened?
Perfect en V-ing
must I not have been saddening? must you not have been saddening? must she not have been saddening? must we not have been saddening? must you not have been saddening? must they not have been saddening?