I must witter you must witter she must witter we must witter you must witter they must witter
Forma con V-ing
I must be wittering you must be wittering she must be wittering we must be wittering you must be wittering they must be wittering
Perfecto
I must have wittered you must have wittered she must have wittered we must have wittered you must have wittered they must have wittered
Perfecto con V-ing
I must have been wittering you must have been wittering she must have been wittering we must have been wittering you must have been wittering they must have been wittering
Negación
Forma simple
I must not witter you must not witter she must not witter we must not witter you must not witter they must not witter
Forma con V-ing
I must not be wittering you must not be wittering she must not be wittering we must not be wittering you must not be wittering they must not be wittering
Perfecto
I must not have wittered you must not have wittered she must not have wittered we must not have wittered you must not have wittered they must not have wittered
Perfecto con V-ing
I must not have been wittering you must not have been wittering she must not have been wittering we must not have been wittering you must not have been wittering they must not have been wittering
Forma interrogativa
Forma simple
must I witter? must you witter? must she witter? must we witter? must you witter? must they witter?
Forma con V-ing
must I be wittering? must you be wittering? must she be wittering? must we be wittering? must you be wittering? must they be wittering?
Perfecto
must I have wittered? must you have wittered? must she have wittered? must we have wittered? must you have wittered? must they have wittered?
Perfecto con V-ing
must I have been wittering? must you have been wittering? must she have been wittering? must we have been wittering? must you have been wittering? must they have been wittering?
Forma interro-negativa
Forma simple
must I not witter? must you not witter? must she not witter? must we not witter? must you not witter? must they not witter?
Forma con V-ing
must I not be wittering? must you not be wittering? must she not be wittering? must we not be wittering? must you not be wittering? must they not be wittering?
Perfecto
must I not have wittered? must you not have wittered? must she not have wittered? must we not have wittered? must you not have wittered? must they not have wittered?
Perfecto con V-ing
must I not have been wittering? must you not have been wittering? must she not have been wittering? must we not have been wittering? must you not have been wittering? must they not have been wittering?