English verb conjugation
MUST CREDIT

Regular verb: credit - credited - credited

Affirmation

Simple form	V-ing form
I must credit you must credit he must credit we must credit you must credit they must credit	I must be crediting you must be crediting he 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 he 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 he 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 he 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 he 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 he 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 he 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 he credit? must we credit? must you credit? must they credit?	must I be crediting? must you be crediting? must he 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 he 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 he 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 he 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 he 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 he 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 he not have been crediting? must we not have been crediting? must you not have been crediting? must they not have been crediting?