I must befoul you must befoul she must befoul we must befoul you must befoul they must befoul
Forme en V-ing
I must be befouling you must be befouling she must be befouling we must be befouling you must be befouling they must be befouling
Perfect
I must have befouled you must have befouled she must have befouled we must have befouled you must have befouled they must have befouled
Perfect en V-ing
I must have been befouling you must have been befouling she must have been befouling we must have been befouling you must have been befouling they must have been befouling
Négation
Forme simple
I mustn't befoul you mustn't befoul she mustn't befoul we mustn't befoul you mustn't befoul they mustn't befoul
Forme en V-ing
I mustn't be befouling you mustn't be befouling she mustn't be befouling we mustn't be befouling you mustn't be befouling they mustn't be befouling
Perfect
I mustn't have befouled you mustn't have befouled she mustn't have befouled we mustn't have befouled you mustn't have befouled they mustn't have befouled
Perfect en V-ing
I mustn't have been befouling you mustn't have been befouling she mustn't have been befouling we mustn't have been befouling you mustn't have been befouling they mustn't have been befouling
Forme interrogative
Forme simple
must I befoul? must you befoul? must she befoul? must we befoul? must you befoul? must they befoul?
Forme en V-ing
must I be befouling? must you be befouling? must she be befouling? must we be befouling? must you be befouling? must they be befouling?
Perfect
must I have befouled? must you have befouled? must she have befouled? must we have befouled? must you have befouled? must they have befouled?
Perfect en V-ing
must I have been befouling? must you have been befouling? must she have been befouling? must we have been befouling? must you have been befouling? must they have been befouling?
Forme interro-négative
Forme simple
mustn't I befoul? mustn't you befoul? mustn't she befoul? mustn't we befoul? mustn't you befoul? mustn't they befoul?
Forme en V-ing
mustn't I be befouling? mustn't you be befouling? mustn't she be befouling? mustn't we be befouling? mustn't you be befouling? mustn't they be befouling?
Perfect
mustn't I have befouled? mustn't you have befouled? mustn't she have befouled? mustn't we have befouled? mustn't you have befouled? mustn't they have befouled?
Perfect en V-ing
mustn't I have been befouling? mustn't you have been befouling? mustn't she have been befouling? mustn't we have been befouling? mustn't you have been befouling? mustn't they have been befouling?