I must butterfly you must butterfly she must butterfly we must butterfly you must butterfly they must butterfly
Forme en V-ing
I must be butterflying you must be butterflying she must be butterflying we must be butterflying you must be butterflying they must be butterflying
Perfect
I must have butterflied you must have butterflied she must have butterflied we must have butterflied you must have butterflied they must have butterflied
Perfect en V-ing
I must have been butterflying you must have been butterflying she must have been butterflying we must have been butterflying you must have been butterflying they must have been butterflying
Négation
Forme simple
I must not butterfly you must not butterfly she must not butterfly we must not butterfly you must not butterfly they must not butterfly
Forme en V-ing
I must not be butterflying you must not be butterflying she must not be butterflying we must not be butterflying you must not be butterflying they must not be butterflying
Perfect
I must not have butterflied you must not have butterflied she must not have butterflied we must not have butterflied you must not have butterflied they must not have butterflied
Perfect en V-ing
I must not have been butterflying you must not have been butterflying she must not have been butterflying we must not have been butterflying you must not have been butterflying they must not have been butterflying
Forme interrogative
Forme simple
must I butterfly? must you butterfly? must she butterfly? must we butterfly? must you butterfly? must they butterfly?
Forme en V-ing
must I be butterflying? must you be butterflying? must she be butterflying? must we be butterflying? must you be butterflying? must they be butterflying?
Perfect
must I have butterflied? must you have butterflied? must she have butterflied? must we have butterflied? must you have butterflied? must they have butterflied?
Perfect en V-ing
must I have been butterflying? must you have been butterflying? must she have been butterflying? must we have been butterflying? must you have been butterflying? must they have been butterflying?
Forme interro-négative
Forme simple
must I not butterfly? must you not butterfly? must she not butterfly? must we not butterfly? must you not butterfly? must they not butterfly?
Forme en V-ing
must I not be butterflying? must you not be butterflying? must she not be butterflying? must we not be butterflying? must you not be butterflying? must they not be butterflying?
Perfect
must I not have butterflied? must you not have butterflied? must she not have butterflied? must we not have butterflied? must you not have butterflied? must they not have butterflied?
Perfect en V-ing
must I not have been butterflying? must you not have been butterflying? must she not have been butterflying? must we not have been butterflying? must you not have been butterflying? must they not have been butterflying?