I must barrack you must barrack she must barrack we must barrack you must barrack they must barrack
Forma con V-ing
I must be barracking you must be barracking she must be barracking we must be barracking you must be barracking they must be barracking
Perfecto
I must have barracked you must have barracked she must have barracked we must have barracked you must have barracked they must have barracked
Perfecto con V-ing
I must have been barracking you must have been barracking she must have been barracking we must have been barracking you must have been barracking they must have been barracking
Negación
Forma simple
I must not barrack you must not barrack she must not barrack we must not barrack you must not barrack they must not barrack
Forma con V-ing
I must not be barracking you must not be barracking she must not be barracking we must not be barracking you must not be barracking they must not be barracking
Perfecto
I must not have barracked you must not have barracked she must not have barracked we must not have barracked you must not have barracked they must not have barracked
Perfecto con V-ing
I must not have been barracking you must not have been barracking she must not have been barracking we must not have been barracking you must not have been barracking they must not have been barracking
Forma interrogativa
Forma simple
must I barrack? must you barrack? must she barrack? must we barrack? must you barrack? must they barrack?
Forma con V-ing
must I be barracking? must you be barracking? must she be barracking? must we be barracking? must you be barracking? must they be barracking?
Perfecto
must I have barracked? must you have barracked? must she have barracked? must we have barracked? must you have barracked? must they have barracked?
Perfecto con V-ing
must I have been barracking? must you have been barracking? must she have been barracking? must we have been barracking? must you have been barracking? must they have been barracking?
Forma interro-negativa
Forma simple
must I not barrack? must you not barrack? must she not barrack? must we not barrack? must you not barrack? must they not barrack?
Forma con V-ing
must I not be barracking? must you not be barracking? must she not be barracking? must we not be barracking? must you not be barracking? must they not be barracking?
Perfecto
must I not have barracked? must you not have barracked? must she not have barracked? must we not have barracked? must you not have barracked? must they not have barracked?
Perfecto con V-ing
must I not have been barracking? must you not have been barracking? must she not have been barracking? must we not have been barracking? must you not have been barracking? must they not have been barracking?