must preach
Regular verb: preach - preached- preached

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?