English verb conjugation
MUST PREAPPOINT

Regular verb: preappoint - preappointed - preappointed

Affirmation

Simple form	V-ing form
I must preappoint you must preappoint she must preappoint we must preappoint you must preappoint they must preappoint	I must be preappointing you must be preappointing she must be preappointing we must be preappointing you must be preappointing they must be preappointing
Perfect	V-ing perfect
I must have preappointed you must have preappointed she must have preappointed we must have preappointed you must have preappointed they must have preappointed	I must have been preappointing you must have been preappointing she must have been preappointing we must have been preappointing you must have been preappointing they must have been preappointing

Negation

Simple form	V-ing form
I must not preappoint you must not preappoint she must not preappoint we must not preappoint you must not preappoint they must not preappoint	I must not be preappointing you must not be preappointing she must not be preappointing we must not be preappointing you must not be preappointing they must not be preappointing
Perfect	V-ing perfect
I must not have preappointed you must not have preappointed she must not have preappointed we must not have preappointed you must not have preappointed they must not have preappointed	I must not have been preappointing you must not have been preappointing she must not have been preappointing we must not have been preappointing you must not have been preappointing they must not have been preappointing

Interrogative form

Simple form	V-ing form
must I preappoint? must you preappoint? must she preappoint? must we preappoint? must you preappoint? must they preappoint?	must I be preappointing? must you be preappointing? must she be preappointing? must we be preappointing? must you be preappointing? must they be preappointing?
Perfect	V-ing perfect
must I have preappointed? must you have preappointed? must she have preappointed? must we have preappointed? must you have preappointed? must they have preappointed?	must I have been preappointing? must you have been preappointing? must she have been preappointing? must we have been preappointing? must you have been preappointing? must they have been preappointing?

Interro-negative form

Simple form	V-ing form
must I not preappoint? must you not preappoint? must she not preappoint? must we not preappoint? must you not preappoint? must they not preappoint?	must I not be preappointing? must you not be preappointing? must she not be preappointing? must we not be preappointing? must you not be preappointing? must they not be preappointing?
Perfect	V-ing perfect
must I not have preappointed? must you not have preappointed? must she not have preappointed? must we not have preappointed? must you not have preappointed? must they not have preappointed?	must I not have been preappointing? must you not have been preappointing? must she not have been preappointing? must we not have been preappointing? must you not have been preappointing? must they not have been preappointing?