English verb conjugation
CAN PREACH

Regular verb: preach - preached - preached

Affirmation

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

Interrogative form

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