English verb conjugation
CAN CLABBER

Regular verb: clabber - clabbered - clabbered

Affirmation

Simple form	V-ing form
I can clabber you can clabber he can clabber we can clabber you can clabber they can clabber	I can be clabbering you can be clabbering he can be clabbering we can be clabbering you can be clabbering they can be clabbering
Perfect	V-ing perfect
I can have clabbered you can have clabbered he can have clabbered we can have clabbered you can have clabbered they can have clabbered	I can have been clabbering you can have been clabbering he can have been clabbering we can have been clabbering you can have been clabbering they can have been clabbering

Negation

Simple form	V-ing form
I can't clabber you can't clabber he can't clabber we can't clabber you can't clabber they can't clabber	I can't be clabbering you can't be clabbering he can't be clabbering we can't be clabbering you can't be clabbering they can't be clabbering
Perfect	V-ing perfect
I can't have clabbered you can't have clabbered he can't have clabbered we can't have clabbered you can't have clabbered they can't have clabbered	I can't have been clabbering you can't have been clabbering he can't have been clabbering we can't have been clabbering you can't have been clabbering they can't have been clabbering

Interrogative form

Simple form	V-ing form
can I clabber? can you clabber? can he clabber? can we clabber? can you clabber? can they clabber?	can I be clabbering? can you be clabbering? can he be clabbering? can we be clabbering? can you be clabbering? can they be clabbering?
Perfect	V-ing perfect
can I have clabbered? can you have clabbered? can he have clabbered? can we have clabbered? can you have clabbered? can they have clabbered?	can I have been clabbering? can you have been clabbering? can he have been clabbering? can we have been clabbering? can you have been clabbering? can they have been clabbering?

Interro-negative form

Simple form	V-ing form
can't I clabber? can't you clabber? can't he clabber? can't we clabber? can't you clabber? can't they clabber?	can't I be clabbering? can't you be clabbering? can't he be clabbering? can't we be clabbering? can't you be clabbering? can't they be clabbering?
Perfect	V-ing perfect
can't I have clabbered? can't you have clabbered? can't he have clabbered? can't we have clabbered? can't you have clabbered? can't they have clabbered?	can't I have been clabbering? can't you have been clabbering? can't he have been clabbering? can't we have been clabbering? can't you have been clabbering? can't they have been clabbering?