I must featherbed you must featherbed she must featherbed we must featherbed you must featherbed they must featherbed
Forme en V-ing
I must be featherbeding you must be featherbeding she must be featherbeding we must be featherbeding you must be featherbeding they must be featherbeding
Perfect
I must have featherbeded you must have featherbeded she must have featherbeded we must have featherbeded you must have featherbeded they must have featherbeded
Perfect en V-ing
I must have been featherbeding you must have been featherbeding she must have been featherbeding we must have been featherbeding you must have been featherbeding they must have been featherbeding
Négation
Forme simple
I must not featherbed you must not featherbed she must not featherbed we must not featherbed you must not featherbed they must not featherbed
Forme en V-ing
I must not be featherbeding you must not be featherbeding she must not be featherbeding we must not be featherbeding you must not be featherbeding they must not be featherbeding
Perfect
I must not have featherbeded you must not have featherbeded she must not have featherbeded we must not have featherbeded you must not have featherbeded they must not have featherbeded
Perfect en V-ing
I must not have been featherbeding you must not have been featherbeding she must not have been featherbeding we must not have been featherbeding you must not have been featherbeding they must not have been featherbeding
Forme interrogative
Forme simple
must I featherbed? must you featherbed? must she featherbed? must we featherbed? must you featherbed? must they featherbed?
Forme en V-ing
must I be featherbeding? must you be featherbeding? must she be featherbeding? must we be featherbeding? must you be featherbeding? must they be featherbeding?
Perfect
must I have featherbeded? must you have featherbeded? must she have featherbeded? must we have featherbeded? must you have featherbeded? must they have featherbeded?
Perfect en V-ing
must I have been featherbeding? must you have been featherbeding? must she have been featherbeding? must we have been featherbeding? must you have been featherbeding? must they have been featherbeding?
Forme interro-négative
Forme simple
must I not featherbed? must you not featherbed? must she not featherbed? must we not featherbed? must you not featherbed? must they not featherbed?
Forme en V-ing
must I not be featherbeding? must you not be featherbeding? must she not be featherbeding? must we not be featherbeding? must you not be featherbeding? must they not be featherbeding?
Perfect
must I not have featherbeded? must you not have featherbeded? must she not have featherbeded? must we not have featherbeded? must you not have featherbeded? must they not have featherbeded?
Perfect en V-ing
must I not have been featherbeding? must you not have been featherbeding? must she not have been featherbeding? must we not have been featherbeding? must you not have been featherbeding? must they not have been featherbeding?