I must storm you must storm she must storm we must storm you must storm they must storm
Forma con V-ing
I must be storming you must be storming she must be storming we must be storming you must be storming they must be storming
Perfecto
I must have stormed you must have stormed she must have stormed we must have stormed you must have stormed they must have stormed
Perfecto con V-ing
I must have been storming you must have been storming she must have been storming we must have been storming you must have been storming they must have been storming
Negación
Forma simple
I must not storm you must not storm she must not storm we must not storm you must not storm they must not storm
Forma con V-ing
I must not be storming you must not be storming she must not be storming we must not be storming you must not be storming they must not be storming
Perfecto
I must not have stormed you must not have stormed she must not have stormed we must not have stormed you must not have stormed they must not have stormed
Perfecto con V-ing
I must not have been storming you must not have been storming she must not have been storming we must not have been storming you must not have been storming they must not have been storming
Forma interrogativa
Forma simple
must I storm? must you storm? must she storm? must we storm? must you storm? must they storm?
Forma con V-ing
must I be storming? must you be storming? must she be storming? must we be storming? must you be storming? must they be storming?
Perfecto
must I have stormed? must you have stormed? must she have stormed? must we have stormed? must you have stormed? must they have stormed?
Perfecto con V-ing
must I have been storming? must you have been storming? must she have been storming? must we have been storming? must you have been storming? must they have been storming?
Forma interro-negativa
Forma simple
must I not storm? must you not storm? must she not storm? must we not storm? must you not storm? must they not storm?
Forma con V-ing
must I not be storming? must you not be storming? must she not be storming? must we not be storming? must you not be storming? must they not be storming?
Perfecto
must I not have stormed? must you not have stormed? must she not have stormed? must we not have stormed? must you not have stormed? must they not have stormed?
Perfecto con V-ing
must I not have been storming? must you not have been storming? must she not have been storming? must we not have been storming? must you not have been storming? must they not have been storming?