Verbe régulier : fail - failed - failed Traduction française : échouer - échouer à
Affirmation
Forme simple
I must fail you must fail she must fail we must fail you must fail they must fail
Forme en V-ing
I must be failing you must be failing she must be failing we must be failing you must be failing they must be failing
Perfect
I must have failed you must have failed she must have failed we must have failed you must have failed they must have failed
Perfect en V-ing
I must have been failing you must have been failing she must have been failing we must have been failing you must have been failing they must have been failing
Négation
Forme simple
I mustn't fail you mustn't fail she mustn't fail we mustn't fail you mustn't fail they mustn't fail
Forme en V-ing
I mustn't be failing you mustn't be failing she mustn't be failing we mustn't be failing you mustn't be failing they mustn't be failing
Perfect
I mustn't have failed you mustn't have failed she mustn't have failed we mustn't have failed you mustn't have failed they mustn't have failed
Perfect en V-ing
I mustn't have been failing you mustn't have been failing she mustn't have been failing we mustn't have been failing you mustn't have been failing they mustn't have been failing
Forme interrogative
Forme simple
must I fail? must you fail? must she fail? must we fail? must you fail? must they fail?
Forme en V-ing
must I be failing? must you be failing? must she be failing? must we be failing? must you be failing? must they be failing?
Perfect
must I have failed? must you have failed? must she have failed? must we have failed? must you have failed? must they have failed?
Perfect en V-ing
must I have been failing? must you have been failing? must she have been failing? must we have been failing? must you have been failing? must they have been failing?
Forme interro-négative
Forme simple
mustn't I fail? mustn't you fail? mustn't she fail? mustn't we fail? mustn't you fail? mustn't they fail?
Forme en V-ing
mustn't I be failing? mustn't you be failing? mustn't she be failing? mustn't we be failing? mustn't you be failing? mustn't they be failing?
Perfect
mustn't I have failed? mustn't you have failed? mustn't she have failed? mustn't we have failed? mustn't you have failed? mustn't they have failed?
Perfect en V-ing
mustn't I have been failing? mustn't you have been failing? mustn't she have been failing? mustn't we have been failing? mustn't you have been failing? mustn't they have been failing?