English verb conjugation
MUST OVERWORK

Regular verb: overwork - overworked - overworked

Affirmation

Simple form	V-ing form
I must overwork you must overwork she must overwork we must overwork you must overwork they must overwork	I must be overworking you must be overworking she must be overworking we must be overworking you must be overworking they must be overworking
Perfect	V-ing perfect
I must have overworked you must have overworked she must have overworked we must have overworked you must have overworked they must have overworked	I must have been overworking you must have been overworking she must have been overworking we must have been overworking you must have been overworking they must have been overworking

Negation

Simple form	V-ing form
I must not overwork you must not overwork she must not overwork we must not overwork you must not overwork they must not overwork	I must not be overworking you must not be overworking she must not be overworking we must not be overworking you must not be overworking they must not be overworking
Perfect	V-ing perfect
I must not have overworked you must not have overworked she must not have overworked we must not have overworked you must not have overworked they must not have overworked	I must not have been overworking you must not have been overworking she must not have been overworking we must not have been overworking you must not have been overworking they must not have been overworking

Interrogative form

Simple form	V-ing form
must I overwork? must you overwork? must she overwork? must we overwork? must you overwork? must they overwork?	must I be overworking? must you be overworking? must she be overworking? must we be overworking? must you be overworking? must they be overworking?
Perfect	V-ing perfect
must I have overworked? must you have overworked? must she have overworked? must we have overworked? must you have overworked? must they have overworked?	must I have been overworking? must you have been overworking? must she have been overworking? must we have been overworking? must you have been overworking? must they have been overworking?

Interro-negative form

Simple form	V-ing form
must I not overwork? must you not overwork? must she not overwork? must we not overwork? must you not overwork? must they not overwork?	must I not be overworking? must you not be overworking? must she not be overworking? must we not be overworking? must you not be overworking? must they not be overworking?
Perfect	V-ing perfect
must I not have overworked? must you not have overworked? must she not have overworked? must we not have overworked? must you not have overworked? must they not have overworked?	must I not have been overworking? must you not have been overworking? must she not have been overworking? must we not have been overworking? must you not have been overworking? must they not have been overworking?