English verb conjugation
MUST SHUT

Irregular verb: shut - shut - shut

Affirmation

Simple form	V-ing form
I must shut you must shut he must shut we must shut you must shut they must shut	I must be shutting you must be shutting he must be shutting we must be shutting you must be shutting they must be shutting
Perfect	V-ing perfect
I must have shut you must have shut he must have shut we must have shut you must have shut they must have shut	I must have been shutting you must have been shutting he must have been shutting we must have been shutting you must have been shutting they must have been shutting

Negation

Simple form	V-ing form
I must not shut you must not shut he must not shut we must not shut you must not shut they must not shut	I must not be shutting you must not be shutting he must not be shutting we must not be shutting you must not be shutting they must not be shutting
Perfect	V-ing perfect
I must not have shut you must not have shut he must not have shut we must not have shut you must not have shut they must not have shut	I must not have been shutting you must not have been shutting he must not have been shutting we must not have been shutting you must not have been shutting they must not have been shutting

Interrogative form

Simple form	V-ing form
must I shut? must you shut? must he shut? must we shut? must you shut? must they shut?	must I be shutting? must you be shutting? must he be shutting? must we be shutting? must you be shutting? must they be shutting?
Perfect	V-ing perfect
must I have shut? must you have shut? must he have shut? must we have shut? must you have shut? must they have shut?	must I have been shutting? must you have been shutting? must he have been shutting? must we have been shutting? must you have been shutting? must they have been shutting?

Interro-negative form

Simple form	V-ing form
must I not shut? must you not shut? must he not shut? must we not shut? must you not shut? must they not shut?	must I not be shutting? must you not be shutting? must he not be shutting? must we not be shutting? must you not be shutting? must they not be shutting?
Perfect	V-ing perfect
must I not have shut? must you not have shut? must he not have shut? must we not have shut? must you not have shut? must they not have shut?	must I not have been shutting? must you not have been shutting? must he not have been shutting? must we not have been shutting? must you not have been shutting? must they not have been shutting?