I must respond you must respond he must respond we must respond you must respond they must respond
Forme en V-ing
I must be responding you must be responding he must be responding we must be responding you must be responding they must be responding
Perfect
I must have responded you must have responded he must have responded we must have responded you must have responded they must have responded
Perfect en V-ing
I must have been responding you must have been responding he must have been responding we must have been responding you must have been responding they must have been responding
Négation
Forme simple
I must not respond you must not respond he must not respond we must not respond you must not respond they must not respond
Forme en V-ing
I must not be responding you must not be responding he must not be responding we must not be responding you must not be responding they must not be responding
Perfect
I must not have responded you must not have responded he must not have responded we must not have responded you must not have responded they must not have responded
Perfect en V-ing
I must not have been responding you must not have been responding he must not have been responding we must not have been responding you must not have been responding they must not have been responding
Forme interrogative
Forme simple
must I respond? must you respond? must he respond? must we respond? must you respond? must they respond?
Forme en V-ing
must I be responding? must you be responding? must he be responding? must we be responding? must you be responding? must they be responding?
Perfect
must I have responded? must you have responded? must he have responded? must we have responded? must you have responded? must they have responded?
Perfect en V-ing
must I have been responding? must you have been responding? must he have been responding? must we have been responding? must you have been responding? must they have been responding?
Forme interro-négative
Forme simple
must I not respond? must you not respond? must he not respond? must we not respond? must you not respond? must they not respond?
Forme en V-ing
must I not be responding? must you not be responding? must he not be responding? must we not be responding? must you not be responding? must they not be responding?
Perfect
must I not have responded? must you not have responded? must he not have responded? must we not have responded? must you not have responded? must they not have responded?
Perfect en V-ing
must I not have been responding? must you not have been responding? must he not have been responding? must we not have been responding? must you not have been responding? must they not have been responding?