English verb conjugation
MUST PREACH

Regular verb: preach - preached - preached

Affirmation

Simple form	V-ing form
I must preach you must preach she must preach we must preach you must preach they must preach	I must be preaching you must be preaching she 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 she 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 she 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 mustn't preach you mustn't preach she mustn't preach we mustn't preach you mustn't preach they mustn't preach	I mustn't be preaching you mustn't be preaching she mustn't be preaching we mustn't be preaching you mustn't be preaching they mustn't be preaching
Perfect	V-ing perfect
I mustn't have preached you mustn't have preached she mustn't have preached we mustn't have preached you mustn't have preached they mustn't have preached	I mustn't have been preaching you mustn't have been preaching she mustn't have been preaching we mustn't have been preaching you mustn't have been preaching they mustn't have been preaching

Interrogative form

Simple form	V-ing form
must I preach? must you preach? must she preach? must we preach? must you preach? must they preach?	must I be preaching? must you be preaching? must she 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 she 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 she 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
mustn't I preach? mustn't you preach? mustn't she preach? mustn't we preach? mustn't you preach? mustn't they preach?	mustn't I be preaching? mustn't you be preaching? mustn't she be preaching? mustn't we be preaching? mustn't you be preaching? mustn't they be preaching?
Perfect	V-ing perfect
mustn't I have preached? mustn't you have preached? mustn't she have preached? mustn't we have preached? mustn't you have preached? mustn't they have preached?	mustn't I have been preaching? mustn't you have been preaching? mustn't she have been preaching? mustn't we have been preaching? mustn't you have been preaching? mustn't they have been preaching?