I must react you must react she must react we must react you must react they must react
Forma con V-ing
I must be reacting you must be reacting she must be reacting we must be reacting you must be reacting they must be reacting
Perfecto
I must have reacted you must have reacted she must have reacted we must have reacted you must have reacted they must have reacted
Perfecto con V-ing
I must have been reacting you must have been reacting she must have been reacting we must have been reacting you must have been reacting they must have been reacting
Negación
Forma simple
I must not react you must not react she must not react we must not react you must not react they must not react
Forma con V-ing
I must not be reacting you must not be reacting she must not be reacting we must not be reacting you must not be reacting they must not be reacting
Perfecto
I must not have reacted you must not have reacted she must not have reacted we must not have reacted you must not have reacted they must not have reacted
Perfecto con V-ing
I must not have been reacting you must not have been reacting she must not have been reacting we must not have been reacting you must not have been reacting they must not have been reacting
Forma interrogativa
Forma simple
must I react? must you react? must she react? must we react? must you react? must they react?
Forma con V-ing
must I be reacting? must you be reacting? must she be reacting? must we be reacting? must you be reacting? must they be reacting?
Perfecto
must I have reacted? must you have reacted? must she have reacted? must we have reacted? must you have reacted? must they have reacted?
Perfecto con V-ing
must I have been reacting? must you have been reacting? must she have been reacting? must we have been reacting? must you have been reacting? must they have been reacting?
Forma interro-negativa
Forma simple
must I not react? must you not react? must she not react? must we not react? must you not react? must they not react?
Forma con V-ing
must I not be reacting? must you not be reacting? must she not be reacting? must we not be reacting? must you not be reacting? must they not be reacting?
Perfecto
must I not have reacted? must you not have reacted? must she not have reacted? must we not have reacted? must you not have reacted? must they not have reacted?
Perfecto con V-ing
must I not have been reacting? must you not have been reacting? must she not have been reacting? must we not have been reacting? must you not have been reacting? must they not have been reacting?