English verb conjugation
MUST OK

Regular verb: ok - oked - oked

Affirmation

Simple form	V-ing form
I must ok you must ok he must ok we must ok you must ok they must ok	I must be oking you must be oking he must be oking we must be oking you must be oking they must be oking
Perfect	V-ing perfect
I must have oked you must have oked he must have oked we must have oked you must have oked they must have oked	I must have been oking you must have been oking he must have been oking we must have been oking you must have been oking they must have been oking

Negation

Simple form	V-ing form
I must not ok you must not ok he must not ok we must not ok you must not ok they must not ok	I must not be oking you must not be oking he must not be oking we must not be oking you must not be oking they must not be oking
Perfect	V-ing perfect
I must not have oked you must not have oked he must not have oked we must not have oked you must not have oked they must not have oked	I must not have been oking you must not have been oking he must not have been oking we must not have been oking you must not have been oking they must not have been oking

Interrogative form

Simple form	V-ing form
must I ok? must you ok? must he ok? must we ok? must you ok? must they ok?	must I be oking? must you be oking? must he be oking? must we be oking? must you be oking? must they be oking?
Perfect	V-ing perfect
must I have oked? must you have oked? must he have oked? must we have oked? must you have oked? must they have oked?	must I have been oking? must you have been oking? must he have been oking? must we have been oking? must you have been oking? must they have been oking?

Interro-negative form

Simple form	V-ing form
must I not ok? must you not ok? must he not ok? must we not ok? must you not ok? must they not ok?	must I not be oking? must you not be oking? must he not be oking? must we not be oking? must you not be oking? must they not be oking?
Perfect	V-ing perfect
must I not have oked? must you not have oked? must he not have oked? must we not have oked? must you not have oked? must they not have oked?	must I not have been oking? must you not have been oking? must he not have been oking? must we not have been oking? must you not have been oking? must they not have been oking?