English verb conjugation
MUST MANGLE

Regular verb: mangle - mangled - mangled

Affirmation

Simple form	V-ing form
I must mangle you must mangle she must mangle we must mangle you must mangle they must mangle	I must be mangling you must be mangling she must be mangling we must be mangling you must be mangling they must be mangling
Perfect	V-ing perfect
I must have mangled you must have mangled she must have mangled we must have mangled you must have mangled they must have mangled	I must have been mangling you must have been mangling she must have been mangling we must have been mangling you must have been mangling they must have been mangling

Negation

Simple form	V-ing form
I must not mangle you must not mangle she must not mangle we must not mangle you must not mangle they must not mangle	I must not be mangling you must not be mangling she must not be mangling we must not be mangling you must not be mangling they must not be mangling
Perfect	V-ing perfect
I must not have mangled you must not have mangled she must not have mangled we must not have mangled you must not have mangled they must not have mangled	I must not have been mangling you must not have been mangling she must not have been mangling we must not have been mangling you must not have been mangling they must not have been mangling

Interrogative form

Simple form	V-ing form
must I mangle? must you mangle? must she mangle? must we mangle? must you mangle? must they mangle?	must I be mangling? must you be mangling? must she be mangling? must we be mangling? must you be mangling? must they be mangling?
Perfect	V-ing perfect
must I have mangled? must you have mangled? must she have mangled? must we have mangled? must you have mangled? must they have mangled?	must I have been mangling? must you have been mangling? must she have been mangling? must we have been mangling? must you have been mangling? must they have been mangling?

Interro-negative form

Simple form	V-ing form
must I not mangle? must you not mangle? must she not mangle? must we not mangle? must you not mangle? must they not mangle?	must I not be mangling? must you not be mangling? must she not be mangling? must we not be mangling? must you not be mangling? must they not be mangling?
Perfect	V-ing perfect
must I not have mangled? must you not have mangled? must she not have mangled? must we not have mangled? must you not have mangled? must they not have mangled?	must I not have been mangling? must you not have been mangling? must she not have been mangling? must we not have been mangling? must you not have been mangling? must they not have been mangling?