I must invest you must invest he must invest we must invest you must invest they must invest
Forma con V-ing
I must be investing you must be investing he must be investing we must be investing you must be investing they must be investing
Perfecto
I must have invested you must have invested he must have invested we must have invested you must have invested they must have invested
Perfecto con V-ing
I must have been investing you must have been investing he must have been investing we must have been investing you must have been investing they must have been investing
Negación
Forma simple
I must not invest you must not invest he must not invest we must not invest you must not invest they must not invest
Forma con V-ing
I must not be investing you must not be investing he must not be investing we must not be investing you must not be investing they must not be investing
Perfecto
I must not have invested you must not have invested he must not have invested we must not have invested you must not have invested they must not have invested
Perfecto con V-ing
I must not have been investing you must not have been investing he must not have been investing we must not have been investing you must not have been investing they must not have been investing
Forma interrogativa
Forma simple
must I invest? must you invest? must he invest? must we invest? must you invest? must they invest?
Forma con V-ing
must I be investing? must you be investing? must he be investing? must we be investing? must you be investing? must they be investing?
Perfecto
must I have invested? must you have invested? must he have invested? must we have invested? must you have invested? must they have invested?
Perfecto con V-ing
must I have been investing? must you have been investing? must he have been investing? must we have been investing? must you have been investing? must they have been investing?
Forma interro-negativa
Forma simple
must I not invest? must you not invest? must he not invest? must we not invest? must you not invest? must they not invest?
Forma con V-ing
must I not be investing? must you not be investing? must he not be investing? must we not be investing? must you not be investing? must they not be investing?
Perfecto
must I not have invested? must you not have invested? must he not have invested? must we not have invested? must you not have invested? must they not have invested?
Perfecto con V-ing
must I not have been investing? must you not have been investing? must he not have been investing? must we not have been investing? must you not have been investing? must they not have been investing?