English verb conjugation
MUST SHADOWBOX

Regular verb: shadowbox - shadowboxed - shadowboxed

Affirmation

Simple form	V-ing form
I must shadowbox you must shadowbox he must shadowbox we must shadowbox you must shadowbox they must shadowbox	I must be shadowboxing you must be shadowboxing he must be shadowboxing we must be shadowboxing you must be shadowboxing they must be shadowboxing
Perfect	V-ing perfect
I must have shadowboxed you must have shadowboxed he must have shadowboxed we must have shadowboxed you must have shadowboxed they must have shadowboxed	I must have been shadowboxing you must have been shadowboxing he must have been shadowboxing we must have been shadowboxing you must have been shadowboxing they must have been shadowboxing

Negation

Simple form	V-ing form
I must not shadowbox you must not shadowbox he must not shadowbox we must not shadowbox you must not shadowbox they must not shadowbox	I must not be shadowboxing you must not be shadowboxing he must not be shadowboxing we must not be shadowboxing you must not be shadowboxing they must not be shadowboxing
Perfect	V-ing perfect
I must not have shadowboxed you must not have shadowboxed he must not have shadowboxed we must not have shadowboxed you must not have shadowboxed they must not have shadowboxed	I must not have been shadowboxing you must not have been shadowboxing he must not have been shadowboxing we must not have been shadowboxing you must not have been shadowboxing they must not have been shadowboxing

Interrogative form

Simple form	V-ing form
must I shadowbox? must you shadowbox? must he shadowbox? must we shadowbox? must you shadowbox? must they shadowbox?	must I be shadowboxing? must you be shadowboxing? must he be shadowboxing? must we be shadowboxing? must you be shadowboxing? must they be shadowboxing?
Perfect	V-ing perfect
must I have shadowboxed? must you have shadowboxed? must he have shadowboxed? must we have shadowboxed? must you have shadowboxed? must they have shadowboxed?	must I have been shadowboxing? must you have been shadowboxing? must he have been shadowboxing? must we have been shadowboxing? must you have been shadowboxing? must they have been shadowboxing?

Interro-negative form

Simple form	V-ing form
must I not shadowbox? must you not shadowbox? must he not shadowbox? must we not shadowbox? must you not shadowbox? must they not shadowbox?	must I not be shadowboxing? must you not be shadowboxing? must he not be shadowboxing? must we not be shadowboxing? must you not be shadowboxing? must they not be shadowboxing?
Perfect	V-ing perfect
must I not have shadowboxed? must you not have shadowboxed? must he not have shadowboxed? must we not have shadowboxed? must you not have shadowboxed? must they not have shadowboxed?	must I not have been shadowboxing? must you not have been shadowboxing? must he not have been shadowboxing? must we not have been shadowboxing? must you not have been shadowboxing? must they not have been shadowboxing?