I must amuse you must amuse she must amuse we must amuse you must amuse they must amuse
Forma com V-ing
I must be amusing you must be amusing she must be amusing we must be amusing you must be amusing they must be amusing
Perfeito
I must have amused you must have amused she must have amused we must have amused you must have amused they must have amused
Perfeito com V-ing
I must have been amusing you must have been amusing she must have been amusing we must have been amusing you must have been amusing they must have been amusing
Negação
Forma simple
I mustn't amuse you mustn't amuse she mustn't amuse we mustn't amuse you mustn't amuse they mustn't amuse
Forma com V-ing
I mustn't be amusing you mustn't be amusing she mustn't be amusing we mustn't be amusing you mustn't be amusing they mustn't be amusing
Perfeito
I mustn't have amused you mustn't have amused she mustn't have amused we mustn't have amused you mustn't have amused they mustn't have amused
Perfeito com V-ing
I mustn't have been amusing you mustn't have been amusing she mustn't have been amusing we mustn't have been amusing you mustn't have been amusing they mustn't have been amusing
Forma interrogativa
Forma simple
must I amuse? must you amuse? must she amuse? must we amuse? must you amuse? must they amuse?
Forma com V-ing
must I be amusing? must you be amusing? must she be amusing? must we be amusing? must you be amusing? must they be amusing?
Perfeito
must I have amused? must you have amused? must she have amused? must we have amused? must you have amused? must they have amused?
Perfeito com V-ing
must I have been amusing? must you have been amusing? must she have been amusing? must we have been amusing? must you have been amusing? must they have been amusing?
Forma interro-Negação
Forma simple
mustn't I amuse? mustn't you amuse? mustn't she amuse? mustn't we amuse? mustn't you amuse? mustn't they amuse?
Forma com V-ing
mustn't I be amusing? mustn't you be amusing? mustn't she be amusing? mustn't we be amusing? mustn't you be amusing? mustn't they be amusing?
Perfeito
mustn't I have amused? mustn't you have amused? mustn't she have amused? mustn't we have amused? mustn't you have amused? mustn't they have amused?
Perfeito com V-ing
mustn't I have been amusing? mustn't you have been amusing? mustn't she have been amusing? mustn't we have been amusing? mustn't you have been amusing? mustn't they have been amusing?