can preach
Regular verb: preach - preached- preached

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't preach
you can't preach
he can't preach
we can't preach
you can't preach
they can't preach 	I can't be preaching
you can't be preaching
he can't be preaching
we can't be preaching
you can't be preaching
they can't be preaching	I can't have preached
you can't have preached
he can't have preached
we can't have preached
you can't have preached
they can't have preached	I can't have been preaching
you can't have been preaching
he can't have been preaching
we can't have been preaching
you can't have been preaching
they can't have been preaching	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I preach?
can't you preach?
can't he preach?
can't we preach?
can't you preach?
can't they preach? 	can't I be preaching?
can't you be preaching?
can't he be preaching?
can't we be preaching?
can't you be preaching?
can't they be preaching? 	can't I have preached?
can't you have preached?
can't he have preached?
can't we have preached?
can't you have preached?
can't they have preached? 	can't I have been preaching?
can't you have been preaching?
can't he have been preaching?
can't we have been preaching?
can't you have been preaching?
can't they have been preaching?