Conjugación del verbo inglés
MUST SCREW

Verbo regular: screw - screwed - screwed

Afirmación

Forma simple	Forma con V-ing
I must screw you must screw she must screw we must screw you must screw they must screw	I must be screwing you must be screwing she must be screwing we must be screwing you must be screwing they must be screwing
Perfecto	Perfecto con V-ing
I must have screwed you must have screwed she must have screwed we must have screwed you must have screwed they must have screwed	I must have been screwing you must have been screwing she must have been screwing we must have been screwing you must have been screwing they must have been screwing

Negación

Forma simple	Forma con V-ing
I must not screw you must not screw she must not screw we must not screw you must not screw they must not screw	I must not be screwing you must not be screwing she must not be screwing we must not be screwing you must not be screwing they must not be screwing
Perfecto	Perfecto con V-ing
I must not have screwed you must not have screwed she must not have screwed we must not have screwed you must not have screwed they must not have screwed	I must not have been screwing you must not have been screwing she 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	Forma con V-ing
must I screw? must you screw? must she screw? must we screw? must you screw? must they screw?	must I be screwing? must you be screwing? must she be screwing? must we be screwing? must you be screwing? must they be screwing?
Perfecto	Perfecto con V-ing
must I have screwed? must you have screwed? must she have screwed? must we have screwed? must you have screwed? must they have screwed?	must I have been screwing? must you have been screwing? must she have been screwing? must we have been screwing? must you have been screwing? must they have been screwing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not screw? must you not screw? must she not screw? must we not screw? must you not screw? must they not screw?	must I not be screwing? must you not be screwing? must she not be screwing? must we not be screwing? must you not be screwing? must they not be screwing?
Perfecto	Perfecto con V-ing
must I not have screwed? must you not have screwed? must she not have screwed? must we not have screwed? must you not have screwed? must they not have screwed?	must I not have been screwing? must you not have been screwing? must she not have been screwing? must we not have been screwing? must you not have been screwing? must they not have been screwing?