Verbo regular: concertina - concertinaed - concertinaed
Afirmación
Forma simple
I must concertina you must concertina he must concertina we must concertina you must concertina they must concertina
Forma con V-ing
I must be concertinaing you must be concertinaing he must be concertinaing we must be concertinaing you must be concertinaing they must be concertinaing
Perfecto
I must have concertinaed you must have concertinaed he must have concertinaed we must have concertinaed you must have concertinaed they must have concertinaed
Perfecto con V-ing
I must have been concertinaing you must have been concertinaing he must have been concertinaing we must have been concertinaing you must have been concertinaing they must have been concertinaing
Negación
Forma simple
I mustn't concertina you mustn't concertina he mustn't concertina we mustn't concertina you mustn't concertina they mustn't concertina
Forma con V-ing
I mustn't be concertinaing you mustn't be concertinaing he mustn't be concertinaing we mustn't be concertinaing you mustn't be concertinaing they mustn't be concertinaing
Perfecto
I mustn't have concertinaed you mustn't have concertinaed he mustn't have concertinaed we mustn't have concertinaed you mustn't have concertinaed they mustn't have concertinaed
Perfecto con V-ing
I mustn't have been concertinaing you mustn't have been concertinaing he mustn't have been concertinaing we mustn't have been concertinaing you mustn't have been concertinaing they mustn't have been concertinaing
Forma interrogativa
Forma simple
must I concertina? must you concertina? must he concertina? must we concertina? must you concertina? must they concertina?
Forma con V-ing
must I be concertinaing? must you be concertinaing? must he be concertinaing? must we be concertinaing? must you be concertinaing? must they be concertinaing?
Perfecto
must I have concertinaed? must you have concertinaed? must he have concertinaed? must we have concertinaed? must you have concertinaed? must they have concertinaed?
Perfecto con V-ing
must I have been concertinaing? must you have been concertinaing? must he have been concertinaing? must we have been concertinaing? must you have been concertinaing? must they have been concertinaing?
Forma interro-negativa
Forma simple
mustn't I concertina? mustn't you concertina? mustn't he concertina? mustn't we concertina? mustn't you concertina? mustn't they concertina?
Forma con V-ing
mustn't I be concertinaing? mustn't you be concertinaing? mustn't he be concertinaing? mustn't we be concertinaing? mustn't you be concertinaing? mustn't they be concertinaing?
Perfecto
mustn't I have concertinaed? mustn't you have concertinaed? mustn't he have concertinaed? mustn't we have concertinaed? mustn't you have concertinaed? mustn't they have concertinaed?
Perfecto con V-ing
mustn't I have been concertinaing? mustn't you have been concertinaing? mustn't he have been concertinaing? mustn't we have been concertinaing? mustn't you have been concertinaing? mustn't they have been concertinaing?