I must backcomb you must backcomb he must backcomb we must backcomb you must backcomb they must backcomb
Forma con V-ing
I must be backcombing you must be backcombing he must be backcombing we must be backcombing you must be backcombing they must be backcombing
Perfecto
I must have backcombed you must have backcombed he must have backcombed we must have backcombed you must have backcombed they must have backcombed
Perfecto con V-ing
I must have been backcombing you must have been backcombing he must have been backcombing we must have been backcombing you must have been backcombing they must have been backcombing
Negación
Forma simple
I mustn't backcomb you mustn't backcomb he mustn't backcomb we mustn't backcomb you mustn't backcomb they mustn't backcomb
Forma con V-ing
I mustn't be backcombing you mustn't be backcombing he mustn't be backcombing we mustn't be backcombing you mustn't be backcombing they mustn't be backcombing
Perfecto
I mustn't have backcombed you mustn't have backcombed he mustn't have backcombed we mustn't have backcombed you mustn't have backcombed they mustn't have backcombed
Perfecto con V-ing
I mustn't have been backcombing you mustn't have been backcombing he mustn't have been backcombing we mustn't have been backcombing you mustn't have been backcombing they mustn't have been backcombing
Forma interrogativa
Forma simple
must I backcomb? must you backcomb? must he backcomb? must we backcomb? must you backcomb? must they backcomb?
Forma con V-ing
must I be backcombing? must you be backcombing? must he be backcombing? must we be backcombing? must you be backcombing? must they be backcombing?
Perfecto
must I have backcombed? must you have backcombed? must he have backcombed? must we have backcombed? must you have backcombed? must they have backcombed?
Perfecto con V-ing
must I have been backcombing? must you have been backcombing? must he have been backcombing? must we have been backcombing? must you have been backcombing? must they have been backcombing?
Forma interro-negativa
Forma simple
mustn't I backcomb? mustn't you backcomb? mustn't he backcomb? mustn't we backcomb? mustn't you backcomb? mustn't they backcomb?
Forma con V-ing
mustn't I be backcombing? mustn't you be backcombing? mustn't he be backcombing? mustn't we be backcombing? mustn't you be backcombing? mustn't they be backcombing?
Perfecto
mustn't I have backcombed? mustn't you have backcombed? mustn't he have backcombed? mustn't we have backcombed? mustn't you have backcombed? mustn't they have backcombed?
Perfecto con V-ing
mustn't I have been backcombing? mustn't you have been backcombing? mustn't he have been backcombing? mustn't we have been backcombing? mustn't you have been backcombing? mustn't they have been backcombing?