English verb conjugation
MUST SHARP

Regular verb: sharp - sharped - sharped

Affirmation

Simple form	V-ing form
I must sharp you must sharp he must sharp we must sharp you must sharp they must sharp	I must be sharping you must be sharping he must be sharping we must be sharping you must be sharping they must be sharping
Perfect	V-ing perfect
I must have sharped you must have sharped he must have sharped we must have sharped you must have sharped they must have sharped	I must have been sharping you must have been sharping he must have been sharping we must have been sharping you must have been sharping they must have been sharping

Negation

Simple form	V-ing form
I must not sharp you must not sharp he must not sharp we must not sharp you must not sharp they must not sharp	I must not be sharping you must not be sharping he must not be sharping we must not be sharping you must not be sharping they must not be sharping
Perfect	V-ing perfect
I must not have sharped you must not have sharped he must not have sharped we must not have sharped you must not have sharped they must not have sharped	I must not have been sharping you must not have been sharping he must not have been sharping we must not have been sharping you must not have been sharping they must not have been sharping

Interrogative form

Simple form	V-ing form
must I sharp? must you sharp? must he sharp? must we sharp? must you sharp? must they sharp?	must I be sharping? must you be sharping? must he be sharping? must we be sharping? must you be sharping? must they be sharping?
Perfect	V-ing perfect
must I have sharped? must you have sharped? must he have sharped? must we have sharped? must you have sharped? must they have sharped?	must I have been sharping? must you have been sharping? must he have been sharping? must we have been sharping? must you have been sharping? must they have been sharping?

Interro-negative form

Simple form	V-ing form
must I not sharp? must you not sharp? must he not sharp? must we not sharp? must you not sharp? must they not sharp?	must I not be sharping? must you not be sharping? must he not be sharping? must we not be sharping? must you not be sharping? must they not be sharping?
Perfect	V-ing perfect
must I not have sharped? must you not have sharped? must he not have sharped? must we not have sharped? must you not have sharped? must they not have sharped?	must I not have been sharping? must you not have been sharping? must he not have been sharping? must we not have been sharping? must you not have been sharping? must they not have been sharping?