English verb conjugation
MUST COPYRIGHT

Regular verb: copyright - copyrighted - copyrighted

Affirmation

Simple form	V-ing form
I must copyright you must copyright she must copyright we must copyright you must copyright they must copyright	I must be copyrighting you must be copyrighting she must be copyrighting we must be copyrighting you must be copyrighting they must be copyrighting
Perfect	V-ing perfect
I must have copyrighted you must have copyrighted she must have copyrighted we must have copyrighted you must have copyrighted they must have copyrighted	I must have been copyrighting you must have been copyrighting she must have been copyrighting we must have been copyrighting you must have been copyrighting they must have been copyrighting

Negation

Simple form	V-ing form
I must not copyright you must not copyright she must not copyright we must not copyright you must not copyright they must not copyright	I must not be copyrighting you must not be copyrighting she must not be copyrighting we must not be copyrighting you must not be copyrighting they must not be copyrighting
Perfect	V-ing perfect
I must not have copyrighted you must not have copyrighted she must not have copyrighted we must not have copyrighted you must not have copyrighted they must not have copyrighted	I must not have been copyrighting you must not have been copyrighting she must not have been copyrighting we must not have been copyrighting you must not have been copyrighting they must not have been copyrighting

Interrogative form

Simple form	V-ing form
must I copyright? must you copyright? must she copyright? must we copyright? must you copyright? must they copyright?	must I be copyrighting? must you be copyrighting? must she be copyrighting? must we be copyrighting? must you be copyrighting? must they be copyrighting?
Perfect	V-ing perfect
must I have copyrighted? must you have copyrighted? must she have copyrighted? must we have copyrighted? must you have copyrighted? must they have copyrighted?	must I have been copyrighting? must you have been copyrighting? must she have been copyrighting? must we have been copyrighting? must you have been copyrighting? must they have been copyrighting?

Interro-negative form

Simple form	V-ing form
must I not copyright? must you not copyright? must she not copyright? must we not copyright? must you not copyright? must they not copyright?	must I not be copyrighting? must you not be copyrighting? must she not be copyrighting? must we not be copyrighting? must you not be copyrighting? must they not be copyrighting?
Perfect	V-ing perfect
must I not have copyrighted? must you not have copyrighted? must she not have copyrighted? must we not have copyrighted? must you not have copyrighted? must they not have copyrighted?	must I not have been copyrighting? must you not have been copyrighting? must she not have been copyrighting? must we not have been copyrighting? must you not have been copyrighting? must they not have been copyrighting?