I must screw you must screw he must screw we must screw you must screw they must screw
Forma com V-ing
I must be screwing you must be screwing he must be screwing we must be screwing you must be screwing they must be screwing
Perfeito
I must have screwed you must have screwed he must have screwed we must have screwed you must have screwed they must have screwed
Perfeito com V-ing
I must have been screwing you must have been screwing he must have been screwing we must have been screwing you must have been screwing they must have been screwing
Negação
Forma simple
I must not screw you must not screw he must not screw we must not screw you must not screw they must not screw
Forma com V-ing
I must not be screwing you must not be screwing he must not be screwing we must not be screwing you must not be screwing they must not be screwing
Perfeito
I must not have screwed you must not have screwed he must not have screwed we must not have screwed you must not have screwed they must not have screwed
Perfeito com V-ing
I must not have been screwing you must not have been screwing he must not have been screwing we must not have been screwing you must not have been screwing they must not have been screwing
Forma interrogativa
Forma simple
must I screw? must you screw? must he screw? must we screw? must you screw? must they screw?
Forma com V-ing
must I be screwing? must you be screwing? must he be screwing? must we be screwing? must you be screwing? must they be screwing?
Perfeito
must I have screwed? must you have screwed? must he have screwed? must we have screwed? must you have screwed? must they have screwed?
Perfeito com V-ing
must I have been screwing? must you have been screwing? must he have been screwing? must we have been screwing? must you have been screwing? must they have been screwing?
Forma interro-Negação
Forma simple
must I not screw? must you not screw? must he not screw? must we not screw? must you not screw? must they not screw?
Forma com V-ing
must I not be screwing? must you not be screwing? must he not be screwing? must we not be screwing? must you not be screwing? must they not be screwing?
Perfeito
must I not have screwed? must you not have screwed? must he not have screwed? must we not have screwed? must you not have screwed? must they not have screwed?
Perfeito com V-ing
must I not have been screwing? must you not have been screwing? must he not have been screwing? must we not have been screwing? must you not have been screwing? must they not have been screwing?