English verb conjugation
MUST FRONT

Regular verb: front - fronted - fronted

Affirmation

Simple form	V-ing form
I must front you must front she must front we must front you must front they must front	I must be fronting you must be fronting she must be fronting we must be fronting you must be fronting they must be fronting
Perfect	V-ing perfect
I must have fronted you must have fronted she must have fronted we must have fronted you must have fronted they must have fronted	I must have been fronting you must have been fronting she must have been fronting we must have been fronting you must have been fronting they must have been fronting

Negation

Simple form	V-ing form
I must not front you must not front she must not front we must not front you must not front they must not front	I must not be fronting you must not be fronting she must not be fronting we must not be fronting you must not be fronting they must not be fronting
Perfect	V-ing perfect
I must not have fronted you must not have fronted she must not have fronted we must not have fronted you must not have fronted they must not have fronted	I must not have been fronting you must not have been fronting she must not have been fronting we must not have been fronting you must not have been fronting they must not have been fronting

Interrogative form

Simple form	V-ing form
must I front? must you front? must she front? must we front? must you front? must they front?	must I be fronting? must you be fronting? must she be fronting? must we be fronting? must you be fronting? must they be fronting?
Perfect	V-ing perfect
must I have fronted? must you have fronted? must she have fronted? must we have fronted? must you have fronted? must they have fronted?	must I have been fronting? must you have been fronting? must she have been fronting? must we have been fronting? must you have been fronting? must they have been fronting?

Interro-negative form

Simple form	V-ing form
must I not front? must you not front? must she not front? must we not front? must you not front? must they not front?	must I not be fronting? must you not be fronting? must she not be fronting? must we not be fronting? must you not be fronting? must they not be fronting?
Perfect	V-ing perfect
must I not have fronted? must you not have fronted? must she not have fronted? must we not have fronted? must you not have fronted? must they not have fronted?	must I not have been fronting? must you not have been fronting? must she not have been fronting? must we not have been fronting? must you not have been fronting? must they not have been fronting?