English verb conjugation
MUST YAUP

Regular verb: yaup - yauped - yauped

Affirmation

Simple form	V-ing form
I must yaup you must yaup he must yaup we must yaup you must yaup they must yaup	I must be yauping you must be yauping he must be yauping we must be yauping you must be yauping they must be yauping
Perfect	V-ing perfect
I must have yauped you must have yauped he must have yauped we must have yauped you must have yauped they must have yauped	I must have been yauping you must have been yauping he must have been yauping we must have been yauping you must have been yauping they must have been yauping

Negation

Simple form	V-ing form
I must not yaup you must not yaup he must not yaup we must not yaup you must not yaup they must not yaup	I must not be yauping you must not be yauping he must not be yauping we must not be yauping you must not be yauping they must not be yauping
Perfect	V-ing perfect
I must not have yauped you must not have yauped he must not have yauped we must not have yauped you must not have yauped they must not have yauped	I must not have been yauping you must not have been yauping he must not have been yauping we must not have been yauping you must not have been yauping they must not have been yauping

Interrogative form

Simple form	V-ing form
must I yaup? must you yaup? must he yaup? must we yaup? must you yaup? must they yaup?	must I be yauping? must you be yauping? must he be yauping? must we be yauping? must you be yauping? must they be yauping?
Perfect	V-ing perfect
must I have yauped? must you have yauped? must he have yauped? must we have yauped? must you have yauped? must they have yauped?	must I have been yauping? must you have been yauping? must he have been yauping? must we have been yauping? must you have been yauping? must they have been yauping?

Interro-negative form

Simple form	V-ing form
must I not yaup? must you not yaup? must he not yaup? must we not yaup? must you not yaup? must they not yaup?	must I not be yauping? must you not be yauping? must he not be yauping? must we not be yauping? must you not be yauping? must they not be yauping?
Perfect	V-ing perfect
must I not have yauped? must you not have yauped? must he not have yauped? must we not have yauped? must you not have yauped? must they not have yauped?	must I not have been yauping? must you not have been yauping? must he not have been yauping? must we not have been yauping? must you not have been yauping? must they not have been yauping?