English verb conjugation
MUST PREACH

Regular verb: preach - preached - preached

Affirmation

Simple form	V-ing form
I must preach you must preach he must preach we must preach you must preach they must preach	I must be preaching you must be preaching he must be preaching we must be preaching you must be preaching they must be preaching
Perfect	V-ing perfect
I must have preached you must have preached he must have preached we must have preached you must have preached they must have preached	I must have been preaching you must have been preaching he must have been preaching we must have been preaching you must have been preaching they must have been preaching

Negation

Simple form	V-ing form
I must not preach you must not preach he must not preach we must not preach you must not preach they must not preach	I must not be preaching you must not be preaching he must not be preaching we must not be preaching you must not be preaching they must not be preaching
Perfect	V-ing perfect
I must not have preached you must not have preached he must not have preached we must not have preached you must not have preached they must not have preached	I must not have been preaching you must not have been preaching he must not have been preaching we must not have been preaching you must not have been preaching they must not have been preaching

Interrogative form

Simple form	V-ing form
must I preach? must you preach? must he preach? must we preach? must you preach? must they preach?	must I be preaching? must you be preaching? must he be preaching? must we be preaching? must you be preaching? must they be preaching?
Perfect	V-ing perfect
must I have preached? must you have preached? must he have preached? must we have preached? must you have preached? must they have preached?	must I have been preaching? must you have been preaching? must he have been preaching? must we have been preaching? must you have been preaching? must they have been preaching?

Interro-negative form

Simple form	V-ing form
must I not preach? must you not preach? must he not preach? must we not preach? must you not preach? must they not preach?	must I not be preaching? must you not be preaching? must he not be preaching? must we not be preaching? must you not be preaching? must they not be preaching?
Perfect	V-ing perfect
must I not have preached? must you not have preached? must he not have preached? must we not have preached? must you not have preached? must they not have preached?	must I not have been preaching? must you not have been preaching? must he not have been preaching? must we not have been preaching? must you not have been preaching? must they not have been preaching?