English verb conjugation
MUST CORE

Regular verb: core - cored - cored

Affirmation

Simple form	V-ing form
I must core you must core he must core we must core you must core they must core	I must be coring you must be coring he must be coring we must be coring you must be coring they must be coring
Perfect	V-ing perfect
I must have cored you must have cored he must have cored we must have cored you must have cored they must have cored	I must have been coring you must have been coring he must have been coring we must have been coring you must have been coring they must have been coring

Negation

Simple form	V-ing form
I must not core you must not core he must not core we must not core you must not core they must not core	I must not be coring you must not be coring he must not be coring we must not be coring you must not be coring they must not be coring
Perfect	V-ing perfect
I must not have cored you must not have cored he must not have cored we must not have cored you must not have cored they must not have cored	I must not have been coring you must not have been coring he must not have been coring we must not have been coring you must not have been coring they must not have been coring

Interrogative form

Simple form	V-ing form
must I core? must you core? must he core? must we core? must you core? must they core?	must I be coring? must you be coring? must he be coring? must we be coring? must you be coring? must they be coring?
Perfect	V-ing perfect
must I have cored? must you have cored? must he have cored? must we have cored? must you have cored? must they have cored?	must I have been coring? must you have been coring? must he have been coring? must we have been coring? must you have been coring? must they have been coring?

Interro-negative form

Simple form	V-ing form
must I not core? must you not core? must he not core? must we not core? must you not core? must they not core?	must I not be coring? must you not be coring? must he not be coring? must we not be coring? must you not be coring? must they not be coring?
Perfect	V-ing perfect
must I not have cored? must you not have cored? must he not have cored? must we not have cored? must you not have cored? must they not have cored?	must I not have been coring? must you not have been coring? must he not have been coring? must we not have been coring? must you not have been coring? must they not have been coring?