English verb conjugation
CAN RAVEN

Regular verb: raven - ravened - ravened

Affirmation

Simple form	V-ing form
I can raven you can raven he can raven we can raven you can raven they can raven	I can be ravening you can be ravening he can be ravening we can be ravening you can be ravening they can be ravening
Perfect	V-ing perfect
I can have ravened you can have ravened he can have ravened we can have ravened you can have ravened they can have ravened	I can have been ravening you can have been ravening he can have been ravening we can have been ravening you can have been ravening they can have been ravening

Negation

Simple form	V-ing form
I can't raven you can't raven he can't raven we can't raven you can't raven they can't raven	I can't be ravening you can't be ravening he can't be ravening we can't be ravening you can't be ravening they can't be ravening
Perfect	V-ing perfect
I can't have ravened you can't have ravened he can't have ravened we can't have ravened you can't have ravened they can't have ravened	I can't have been ravening you can't have been ravening he can't have been ravening we can't have been ravening you can't have been ravening they can't have been ravening

Interrogative form

Simple form	V-ing form
can I raven? can you raven? can he raven? can we raven? can you raven? can they raven?	can I be ravening? can you be ravening? can he be ravening? can we be ravening? can you be ravening? can they be ravening?
Perfect	V-ing perfect
can I have ravened? can you have ravened? can he have ravened? can we have ravened? can you have ravened? can they have ravened?	can I have been ravening? can you have been ravening? can he have been ravening? can we have been ravening? can you have been ravening? can they have been ravening?

Interro-negative form

Simple form	V-ing form
can't I raven? can't you raven? can't he raven? can't we raven? can't you raven? can't they raven?	can't I be ravening? can't you be ravening? can't he be ravening? can't we be ravening? can't you be ravening? can't they be ravening?
Perfect	V-ing perfect
can't I have ravened? can't you have ravened? can't he have ravened? can't we have ravened? can't you have ravened? can't they have ravened?	can't I have been ravening? can't you have been ravening? can't he have been ravening? can't we have been ravening? can't you have been ravening? can't they have been ravening?