English verb conjugation
MUST OPT

Regular verb: opt - opted - opted

Affirmation

Simple form	V-ing form
I must opt you must opt she must opt we must opt you must opt they must opt	I must be opting you must be opting she must be opting we must be opting you must be opting they must be opting
Perfect	V-ing perfect
I must have opted you must have opted she must have opted we must have opted you must have opted they must have opted	I must have been opting you must have been opting she must have been opting we must have been opting you must have been opting they must have been opting

Negation

Simple form	V-ing form
I must not opt you must not opt she must not opt we must not opt you must not opt they must not opt	I must not be opting you must not be opting she must not be opting we must not be opting you must not be opting they must not be opting
Perfect	V-ing perfect
I must not have opted you must not have opted she must not have opted we must not have opted you must not have opted they must not have opted	I must not have been opting you must not have been opting she must not have been opting we must not have been opting you must not have been opting they must not have been opting

Interrogative form

Simple form	V-ing form
must I opt? must you opt? must she opt? must we opt? must you opt? must they opt?	must I be opting? must you be opting? must she be opting? must we be opting? must you be opting? must they be opting?
Perfect	V-ing perfect
must I have opted? must you have opted? must she have opted? must we have opted? must you have opted? must they have opted?	must I have been opting? must you have been opting? must she have been opting? must we have been opting? must you have been opting? must they have been opting?

Interro-negative form

Simple form	V-ing form
must I not opt? must you not opt? must she not opt? must we not opt? must you not opt? must they not opt?	must I not be opting? must you not be opting? must she not be opting? must we not be opting? must you not be opting? must they not be opting?
Perfect	V-ing perfect
must I not have opted? must you not have opted? must she not have opted? must we not have opted? must you not have opted? must they not have opted?	must I not have been opting? must you not have been opting? must she not have been opting? must we not have been opting? must you not have been opting? must they not have been opting?