English verb conjugation
MUST OVERSTAY

Regular verb: overstay - overstayed - overstayed

Affirmation

Simple form	V-ing form
I must overstay you must overstay she must overstay we must overstay you must overstay they must overstay	I must be overstaying you must be overstaying she must be overstaying we must be overstaying you must be overstaying they must be overstaying
Perfect	V-ing perfect
I must have overstayed you must have overstayed she must have overstayed we must have overstayed you must have overstayed they must have overstayed	I must have been overstaying you must have been overstaying she must have been overstaying we must have been overstaying you must have been overstaying they must have been overstaying

Negation

Simple form	V-ing form
I must not overstay you must not overstay she must not overstay we must not overstay you must not overstay they must not overstay	I must not be overstaying you must not be overstaying she must not be overstaying we must not be overstaying you must not be overstaying they must not be overstaying
Perfect	V-ing perfect
I must not have overstayed you must not have overstayed she must not have overstayed we must not have overstayed you must not have overstayed they must not have overstayed	I must not have been overstaying you must not have been overstaying she must not have been overstaying we must not have been overstaying you must not have been overstaying they must not have been overstaying

Interrogative form

Simple form	V-ing form
must I overstay? must you overstay? must she overstay? must we overstay? must you overstay? must they overstay?	must I be overstaying? must you be overstaying? must she be overstaying? must we be overstaying? must you be overstaying? must they be overstaying?
Perfect	V-ing perfect
must I have overstayed? must you have overstayed? must she have overstayed? must we have overstayed? must you have overstayed? must they have overstayed?	must I have been overstaying? must you have been overstaying? must she have been overstaying? must we have been overstaying? must you have been overstaying? must they have been overstaying?

Interro-negative form

Simple form	V-ing form
must I not overstay? must you not overstay? must she not overstay? must we not overstay? must you not overstay? must they not overstay?	must I not be overstaying? must you not be overstaying? must she not be overstaying? must we not be overstaying? must you not be overstaying? must they not be overstaying?
Perfect	V-ing perfect
must I not have overstayed? must you not have overstayed? must she not have overstayed? must we not have overstayed? must you not have overstayed? must they not have overstayed?	must I not have been overstaying? must you not have been overstaying? must she not have been overstaying? must we not have been overstaying? must you not have been overstaying? must they not have been overstaying?