English verb conjugation
CAN PREACH

Regular verb: preach - preached - preached

Affirmation

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