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