I must talk you must talk she must talk we must talk you must talk they must talk
Forma con V-ing
I must be talking you must be talking she must be talking we must be talking you must be talking they must be talking
Perfecto
I must have talked you must have talked she must have talked we must have talked you must have talked they must have talked
Perfecto con V-ing
I must have been talking you must have been talking she must have been talking we must have been talking you must have been talking they must have been talking
Negación
Forma simple
I must not talk you must not talk she must not talk we must not talk you must not talk they must not talk
Forma con V-ing
I must not be talking you must not be talking she must not be talking we must not be talking you must not be talking they must not be talking
Perfecto
I must not have talked you must not have talked she must not have talked we must not have talked you must not have talked they must not have talked
Perfecto con V-ing
I must not have been talking you must not have been talking she must not have been talking we must not have been talking you must not have been talking they must not have been talking
Forma interrogativa
Forma simple
must I talk? must you talk? must she talk? must we talk? must you talk? must they talk?
Forma con V-ing
must I be talking? must you be talking? must she be talking? must we be talking? must you be talking? must they be talking?
Perfecto
must I have talked? must you have talked? must she have talked? must we have talked? must you have talked? must they have talked?
Perfecto con V-ing
must I have been talking? must you have been talking? must she have been talking? must we have been talking? must you have been talking? must they have been talking?
Forma interro-negativa
Forma simple
must I not talk? must you not talk? must she not talk? must we not talk? must you not talk? must they not talk?
Forma con V-ing
must I not be talking? must you not be talking? must she not be talking? must we not be talking? must you not be talking? must they not be talking?
Perfecto
must I not have talked? must you not have talked? must she not have talked? must we not have talked? must you not have talked? must they not have talked?
Perfecto con V-ing
must I not have been talking? must you not have been talking? must she not have been talking? must we not have been talking? must you not have been talking? must they not have been talking?