I must abrade you must abrade he must abrade we must abrade you must abrade they must abrade
Forma con V-ing
I must be abrading you must be abrading he must be abrading we must be abrading you must be abrading they must be abrading
Perfecto
I must have abraded you must have abraded he must have abraded we must have abraded you must have abraded they must have abraded
Perfecto con V-ing
I must have been abrading you must have been abrading he must have been abrading we must have been abrading you must have been abrading they must have been abrading
Negación
Forma simple
I must not abrade you must not abrade he must not abrade we must not abrade you must not abrade they must not abrade
Forma con V-ing
I must not be abrading you must not be abrading he must not be abrading we must not be abrading you must not be abrading they must not be abrading
Perfecto
I must not have abraded you must not have abraded he must not have abraded we must not have abraded you must not have abraded they must not have abraded
Perfecto con V-ing
I must not have been abrading you must not have been abrading he must not have been abrading we must not have been abrading you must not have been abrading they must not have been abrading
Forma interrogativa
Forma simple
must I abrade? must you abrade? must he abrade? must we abrade? must you abrade? must they abrade?
Forma con V-ing
must I be abrading? must you be abrading? must he be abrading? must we be abrading? must you be abrading? must they be abrading?
Perfecto
must I have abraded? must you have abraded? must he have abraded? must we have abraded? must you have abraded? must they have abraded?
Perfecto con V-ing
must I have been abrading? must you have been abrading? must he have been abrading? must we have been abrading? must you have been abrading? must they have been abrading?
Forma interro-negativa
Forma simple
must I not abrade? must you not abrade? must he not abrade? must we not abrade? must you not abrade? must they not abrade?
Forma con V-ing
must I not be abrading? must you not be abrading? must he not be abrading? must we not be abrading? must you not be abrading? must they not be abrading?
Perfecto
must I not have abraded? must you not have abraded? must he not have abraded? must we not have abraded? must you not have abraded? must they not have abraded?
Perfecto con V-ing
must I not have been abrading? must you not have been abrading? must he not have been abrading? must we not have been abrading? must you not have been abrading? must they not have been abrading?