English verb conjugation
MUST CREDIT

Regular verb: credit - credited - credited

Affirmation

Simple form	V-ing form
I must credit you must credit she must credit we must credit you must credit they must credit	I must be crediting you must be crediting she must be crediting we must be crediting you must be crediting they must be crediting
Perfect	V-ing perfect
I must have credited you must have credited she must have credited we must have credited you must have credited they must have credited	I must have been crediting you must have been crediting she must have been crediting we must have been crediting you must have been crediting they must have been crediting

Negation

Simple form	V-ing form
I must not credit you must not credit she must not credit we must not credit you must not credit they must not credit	I must not be crediting you must not be crediting she must not be crediting we must not be crediting you must not be crediting they must not be crediting
Perfect	V-ing perfect
I must not have credited you must not have credited she must not have credited we must not have credited you must not have credited they must not have credited	I must not have been crediting you must not have been crediting she must not have been crediting we must not have been crediting you must not have been crediting they must not have been crediting

Interrogative form

Simple form	V-ing form
must I credit? must you credit? must she credit? must we credit? must you credit? must they credit?	must I be crediting? must you be crediting? must she be crediting? must we be crediting? must you be crediting? must they be crediting?
Perfect	V-ing perfect
must I have credited? must you have credited? must she have credited? must we have credited? must you have credited? must they have credited?	must I have been crediting? must you have been crediting? must she have been crediting? must we have been crediting? must you have been crediting? must they have been crediting?

Interro-negative form

Simple form	V-ing form
must I not credit? must you not credit? must she not credit? must we not credit? must you not credit? must they not credit?	must I not be crediting? must you not be crediting? must she not be crediting? must we not be crediting? must you not be crediting? must they not be crediting?
Perfect	V-ing perfect
must I not have credited? must you not have credited? must she not have credited? must we not have credited? must you not have credited? must they not have credited?	must I not have been crediting? must you not have been crediting? must she not have been crediting? must we not have been crediting? must you not have been crediting? must they not have been crediting?