I must tell you must tell she must tell we must tell you must tell they must tell
Forma con V-ing
I must be telling you must be telling she must be telling we must be telling you must be telling they must be telling
Perfecto
I must have told you must have told she must have told we must have told you must have told they must have told
Perfecto con V-ing
I must have been telling you must have been telling she must have been telling we must have been telling you must have been telling they must have been telling
Negación
Forma simple
I must not tell you must not tell she must not tell we must not tell you must not tell they must not tell
Forma con V-ing
I must not be telling you must not be telling she must not be telling we must not be telling you must not be telling they must not be telling
Perfecto
I must not have told you must not have told she must not have told we must not have told you must not have told they must not have told
Perfecto con V-ing
I must not have been telling you must not have been telling she must not have been telling we must not have been telling you must not have been telling they must not have been telling
Forma interrogativa
Forma simple
must I tell? must you tell? must she tell? must we tell? must you tell? must they tell?
Forma con V-ing
must I be telling? must you be telling? must she be telling? must we be telling? must you be telling? must they be telling?
Perfecto
must I have told? must you have told? must she have told? must we have told? must you have told? must they have told?
Perfecto con V-ing
must I have been telling? must you have been telling? must she have been telling? must we have been telling? must you have been telling? must they have been telling?
Forma interro-negativa
Forma simple
must I not tell? must you not tell? must she not tell? must we not tell? must you not tell? must they not tell?
Forma con V-ing
must I not be telling? must you not be telling? must she not be telling? must we not be telling? must you not be telling? must they not be telling?
Perfecto
must I not have told? must you not have told? must she not have told? must we not have told? must you not have told? must they not have told?
Perfecto con V-ing
must I not have been telling? must you not have been telling? must she not have been telling? must we not have been telling? must you not have been telling? must they not have been telling?