I must arm you must arm he must arm we must arm you must arm they must arm
Forma con V-ing
I must be arming you must be arming he must be arming we must be arming you must be arming they must be arming
Perfecto
I must have armed you must have armed he must have armed we must have armed you must have armed they must have armed
Perfecto con V-ing
I must have been arming you must have been arming he must have been arming we must have been arming you must have been arming they must have been arming
Negación
Forma simple
I must not arm you must not arm he must not arm we must not arm you must not arm they must not arm
Forma con V-ing
I must not be arming you must not be arming he must not be arming we must not be arming you must not be arming they must not be arming
Perfecto
I must not have armed you must not have armed he must not have armed we must not have armed you must not have armed they must not have armed
Perfecto con V-ing
I must not have been arming you must not have been arming he must not have been arming we must not have been arming you must not have been arming they must not have been arming
Forma interrogativa
Forma simple
must I arm? must you arm? must he arm? must we arm? must you arm? must they arm?
Forma con V-ing
must I be arming? must you be arming? must he be arming? must we be arming? must you be arming? must they be arming?
Perfecto
must I have armed? must you have armed? must he have armed? must we have armed? must you have armed? must they have armed?
Perfecto con V-ing
must I have been arming? must you have been arming? must he have been arming? must we have been arming? must you have been arming? must they have been arming?
Forma interro-negativa
Forma simple
must I not arm? must you not arm? must he not arm? must we not arm? must you not arm? must they not arm?
Forma con V-ing
must I not be arming? must you not be arming? must he not be arming? must we not be arming? must you not be arming? must they not be arming?
Perfecto
must I not have armed? must you not have armed? must he not have armed? must we not have armed? must you not have armed? must they not have armed?
Perfecto con V-ing
must I not have been arming? must you not have been arming? must he not have been arming? must we not have been arming? must you not have been arming? must they not have been arming?