English verb conjugation
MUST TIDY

Regular verb: tidy - tidied - tidied

Affirmation

Simple form	V-ing form
I must tidy you must tidy he must tidy we must tidy you must tidy they must tidy	I must be tidying you must be tidying he must be tidying we must be tidying you must be tidying they must be tidying
Perfect	V-ing perfect
I must have tidied you must have tidied he must have tidied we must have tidied you must have tidied they must have tidied	I must have been tidying you must have been tidying he must have been tidying we must have been tidying you must have been tidying they must have been tidying

Negation

Simple form	V-ing form
I must not tidy you must not tidy he must not tidy we must not tidy you must not tidy they must not tidy	I must not be tidying you must not be tidying he must not be tidying we must not be tidying you must not be tidying they must not be tidying
Perfect	V-ing perfect
I must not have tidied you must not have tidied he must not have tidied we must not have tidied you must not have tidied they must not have tidied	I must not have been tidying you must not have been tidying he must not have been tidying we must not have been tidying you must not have been tidying they must not have been tidying

Interrogative form

Simple form	V-ing form
must I tidy? must you tidy? must he tidy? must we tidy? must you tidy? must they tidy?	must I be tidying? must you be tidying? must he be tidying? must we be tidying? must you be tidying? must they be tidying?
Perfect	V-ing perfect
must I have tidied? must you have tidied? must he have tidied? must we have tidied? must you have tidied? must they have tidied?	must I have been tidying? must you have been tidying? must he have been tidying? must we have been tidying? must you have been tidying? must they have been tidying?

Interro-negative form

Simple form	V-ing form
must I not tidy? must you not tidy? must he not tidy? must we not tidy? must you not tidy? must they not tidy?	must I not be tidying? must you not be tidying? must he not be tidying? must we not be tidying? must you not be tidying? must they not be tidying?
Perfect	V-ing perfect
must I not have tidied? must you not have tidied? must he not have tidied? must we not have tidied? must you not have tidied? must they not have tidied?	must I not have been tidying? must you not have been tidying? must he not have been tidying? must we not have been tidying? must you not have been tidying? must they not have been tidying?