I must comb you must comb she must comb we must comb you must comb they must comb
Forma con V-ing
I must be combing you must be combing she must be combing we must be combing you must be combing they must be combing
Perfecto
I must have combed you must have combed she must have combed we must have combed you must have combed they must have combed
Perfecto con V-ing
I must have been combing you must have been combing she must have been combing we must have been combing you must have been combing they must have been combing
Negación
Forma simple
I must not comb you must not comb she must not comb we must not comb you must not comb they must not comb
Forma con V-ing
I must not be combing you must not be combing she must not be combing we must not be combing you must not be combing they must not be combing
Perfecto
I must not have combed you must not have combed she must not have combed we must not have combed you must not have combed they must not have combed
Perfecto con V-ing
I must not have been combing you must not have been combing she must not have been combing we must not have been combing you must not have been combing they must not have been combing
Forma interrogativa
Forma simple
must I comb? must you comb? must she comb? must we comb? must you comb? must they comb?
Forma con V-ing
must I be combing? must you be combing? must she be combing? must we be combing? must you be combing? must they be combing?
Perfecto
must I have combed? must you have combed? must she have combed? must we have combed? must you have combed? must they have combed?
Perfecto con V-ing
must I have been combing? must you have been combing? must she have been combing? must we have been combing? must you have been combing? must they have been combing?
Forma interro-negativa
Forma simple
must I not comb? must you not comb? must she not comb? must we not comb? must you not comb? must they not comb?
Forma con V-ing
must I not be combing? must you not be combing? must she not be combing? must we not be combing? must you not be combing? must they not be combing?
Perfecto
must I not have combed? must you not have combed? must she not have combed? must we not have combed? must you not have combed? must they not have combed?
Perfecto con V-ing
must I not have been combing? must you not have been combing? must she not have been combing? must we not have been combing? must you not have been combing? must they not have been combing?