I must spare you must spare he must spare we must spare you must spare they must spare
Forme en V-ing
I must be sparing you must be sparing he must be sparing we must be sparing you must be sparing they must be sparing
Perfect
I must have spared you must have spared he must have spared we must have spared you must have spared they must have spared
Perfect en V-ing
I must have been sparing you must have been sparing he must have been sparing we must have been sparing you must have been sparing they must have been sparing
Négation
Forme simple
I mustn't spare you mustn't spare he mustn't spare we mustn't spare you mustn't spare they mustn't spare
Forme en V-ing
I mustn't be sparing you mustn't be sparing he mustn't be sparing we mustn't be sparing you mustn't be sparing they mustn't be sparing
Perfect
I mustn't have spared you mustn't have spared he mustn't have spared we mustn't have spared you mustn't have spared they mustn't have spared
Perfect en V-ing
I mustn't have been sparing you mustn't have been sparing he mustn't have been sparing we mustn't have been sparing you mustn't have been sparing they mustn't have been sparing
Forme interrogative
Forme simple
must I spare? must you spare? must he spare? must we spare? must you spare? must they spare?
Forme en V-ing
must I be sparing? must you be sparing? must he be sparing? must we be sparing? must you be sparing? must they be sparing?
Perfect
must I have spared? must you have spared? must he have spared? must we have spared? must you have spared? must they have spared?
Perfect en V-ing
must I have been sparing? must you have been sparing? must he have been sparing? must we have been sparing? must you have been sparing? must they have been sparing?
Forme interro-négative
Forme simple
mustn't I spare? mustn't you spare? mustn't he spare? mustn't we spare? mustn't you spare? mustn't they spare?
Forme en V-ing
mustn't I be sparing? mustn't you be sparing? mustn't he be sparing? mustn't we be sparing? mustn't you be sparing? mustn't they be sparing?
Perfect
mustn't I have spared? mustn't you have spared? mustn't he have spared? mustn't we have spared? mustn't you have spared? mustn't they have spared?
Perfect en V-ing
mustn't I have been sparing? mustn't you have been sparing? mustn't he have been sparing? mustn't we have been sparing? mustn't you have been sparing? mustn't they have been sparing?