I must fork you must fork he must fork we must fork you must fork they must fork
Forma com V-ing
I must be forking you must be forking he must be forking we must be forking you must be forking they must be forking
Perfeito
I must have forked you must have forked he must have forked we must have forked you must have forked they must have forked
Perfeito com V-ing
I must have been forking you must have been forking he must have been forking we must have been forking you must have been forking they must have been forking
Negação
Forma simple
I mustn't fork you mustn't fork he mustn't fork we mustn't fork you mustn't fork they mustn't fork
Forma com V-ing
I mustn't be forking you mustn't be forking he mustn't be forking we mustn't be forking you mustn't be forking they mustn't be forking
Perfeito
I mustn't have forked you mustn't have forked he mustn't have forked we mustn't have forked you mustn't have forked they mustn't have forked
Perfeito com V-ing
I mustn't have been forking you mustn't have been forking he mustn't have been forking we mustn't have been forking you mustn't have been forking they mustn't have been forking
Forma interrogativa
Forma simple
must I fork? must you fork? must he fork? must we fork? must you fork? must they fork?
Forma com V-ing
must I be forking? must you be forking? must he be forking? must we be forking? must you be forking? must they be forking?
Perfeito
must I have forked? must you have forked? must he have forked? must we have forked? must you have forked? must they have forked?
Perfeito com V-ing
must I have been forking? must you have been forking? must he have been forking? must we have been forking? must you have been forking? must they have been forking?
Forma interro-Negação
Forma simple
mustn't I fork? mustn't you fork? mustn't he fork? mustn't we fork? mustn't you fork? mustn't they fork?
Forma com V-ing
mustn't I be forking? mustn't you be forking? mustn't he be forking? mustn't we be forking? mustn't you be forking? mustn't they be forking?
Perfeito
mustn't I have forked? mustn't you have forked? mustn't he have forked? mustn't we have forked? mustn't you have forked? mustn't they have forked?
Perfeito com V-ing
mustn't I have been forking? mustn't you have been forking? mustn't he have been forking? mustn't we have been forking? mustn't you have been forking? mustn't they have been forking?