I must worry you must worry she must worry we must worry you must worry they must worry
Forme en V-ing
I must be worrying you must be worrying she must be worrying we must be worrying you must be worrying they must be worrying
Perfect
I must have worried you must have worried she must have worried we must have worried you must have worried they must have worried
Perfect en V-ing
I must have been worrying you must have been worrying she must have been worrying we must have been worrying you must have been worrying they must have been worrying
Négation
Forme simple
I must not worry you must not worry she must not worry we must not worry you must not worry they must not worry
Forme en V-ing
I must not be worrying you must not be worrying she must not be worrying we must not be worrying you must not be worrying they must not be worrying
Perfect
I must not have worried you must not have worried she must not have worried we must not have worried you must not have worried they must not have worried
Perfect en V-ing
I must not have been worrying you must not have been worrying she must not have been worrying we must not have been worrying you must not have been worrying they must not have been worrying
Forme interrogative
Forme simple
must I worry? must you worry? must she worry? must we worry? must you worry? must they worry?
Forme en V-ing
must I be worrying? must you be worrying? must she be worrying? must we be worrying? must you be worrying? must they be worrying?
Perfect
must I have worried? must you have worried? must she have worried? must we have worried? must you have worried? must they have worried?
Perfect en V-ing
must I have been worrying? must you have been worrying? must she have been worrying? must we have been worrying? must you have been worrying? must they have been worrying?
Forme interro-négative
Forme simple
must I not worry? must you not worry? must she not worry? must we not worry? must you not worry? must they not worry?
Forme en V-ing
must I not be worrying? must you not be worrying? must she not be worrying? must we not be worrying? must you not be worrying? must they not be worrying?
Perfect
must I not have worried? must you not have worried? must she not have worried? must we not have worried? must you not have worried? must they not have worried?
Perfect en V-ing
must I not have been worrying? must you not have been worrying? must she not have been worrying? must we not have been worrying? must you not have been worrying? must they not have been worrying?