I must untwist you must untwist she must untwist we must untwist you must untwist they must untwist
Forme en V-ing
I must be untwisting you must be untwisting she must be untwisting we must be untwisting you must be untwisting they must be untwisting
Perfect
I must have untwisted you must have untwisted she must have untwisted we must have untwisted you must have untwisted they must have untwisted
Perfect en V-ing
I must have been untwisting you must have been untwisting she must have been untwisting we must have been untwisting you must have been untwisting they must have been untwisting
Négation
Forme simple
I must not untwist you must not untwist she must not untwist we must not untwist you must not untwist they must not untwist
Forme en V-ing
I must not be untwisting you must not be untwisting she must not be untwisting we must not be untwisting you must not be untwisting they must not be untwisting
Perfect
I must not have untwisted you must not have untwisted she must not have untwisted we must not have untwisted you must not have untwisted they must not have untwisted
Perfect en V-ing
I must not have been untwisting you must not have been untwisting she must not have been untwisting we must not have been untwisting you must not have been untwisting they must not have been untwisting
Forme interrogative
Forme simple
must I untwist? must you untwist? must she untwist? must we untwist? must you untwist? must they untwist?
Forme en V-ing
must I be untwisting? must you be untwisting? must she be untwisting? must we be untwisting? must you be untwisting? must they be untwisting?
Perfect
must I have untwisted? must you have untwisted? must she have untwisted? must we have untwisted? must you have untwisted? must they have untwisted?
Perfect en V-ing
must I have been untwisting? must you have been untwisting? must she have been untwisting? must we have been untwisting? must you have been untwisting? must they have been untwisting?
Forme interro-négative
Forme simple
must I not untwist? must you not untwist? must she not untwist? must we not untwist? must you not untwist? must they not untwist?
Forme en V-ing
must I not be untwisting? must you not be untwisting? must she not be untwisting? must we not be untwisting? must you not be untwisting? must they not be untwisting?
Perfect
must I not have untwisted? must you not have untwisted? must she not have untwisted? must we not have untwisted? must you not have untwisted? must they not have untwisted?
Perfect en V-ing
must I not have been untwisting? must you not have been untwisting? must she not have been untwisting? must we not have been untwisting? must you not have been untwisting? must they not have been untwisting?