I must barb you must barb she must barb we must barb you must barb they must barb
Forme en V-ing
I must be barbing you must be barbing she must be barbing we must be barbing you must be barbing they must be barbing
Perfect
I must have barbed you must have barbed she must have barbed we must have barbed you must have barbed they must have barbed
Perfect en V-ing
I must have been barbing you must have been barbing she must have been barbing we must have been barbing you must have been barbing they must have been barbing
Négation
Forme simple
I must not barb you must not barb she must not barb we must not barb you must not barb they must not barb
Forme en V-ing
I must not be barbing you must not be barbing she must not be barbing we must not be barbing you must not be barbing they must not be barbing
Perfect
I must not have barbed you must not have barbed she must not have barbed we must not have barbed you must not have barbed they must not have barbed
Perfect en V-ing
I must not have been barbing you must not have been barbing she must not have been barbing we must not have been barbing you must not have been barbing they must not have been barbing
Forme interrogative
Forme simple
must I barb? must you barb? must she barb? must we barb? must you barb? must they barb?
Forme en V-ing
must I be barbing? must you be barbing? must she be barbing? must we be barbing? must you be barbing? must they be barbing?
Perfect
must I have barbed? must you have barbed? must she have barbed? must we have barbed? must you have barbed? must they have barbed?
Perfect en V-ing
must I have been barbing? must you have been barbing? must she have been barbing? must we have been barbing? must you have been barbing? must they have been barbing?
Forme interro-négative
Forme simple
must I not barb? must you not barb? must she not barb? must we not barb? must you not barb? must they not barb?
Forme en V-ing
must I not be barbing? must you not be barbing? must she not be barbing? must we not be barbing? must you not be barbing? must they not be barbing?
Perfect
must I not have barbed? must you not have barbed? must she not have barbed? must we not have barbed? must you not have barbed? must they not have barbed?
Perfect en V-ing
must I not have been barbing? must you not have been barbing? must she not have been barbing? must we not have been barbing? must you not have been barbing? must they not have been barbing?