English verb conjugation
COULD BUFFALO

Regular verb: buffalo - buffaloed - buffaloed

Affirmation

Simple form	V-ing form
I could buffalo you could buffalo he could buffalo we could buffalo you could buffalo they could buffalo	I could be buffaloing you could be buffaloing he could be buffaloing we could be buffaloing you could be buffaloing they could be buffaloing
Perfect	V-ing perfect
I could have buffaloed you could have buffaloed he could have buffaloed we could have buffaloed you could have buffaloed they could have buffaloed	I could have been buffaloing you could have been buffaloing he could have been buffaloing we could have been buffaloing you could have been buffaloing they could have been buffaloing

Negation

Simple form	V-ing form
I couldn't buffalo you couldn't buffalo he couldn't buffalo we couldn't buffalo you couldn't buffalo they couldn't buffalo	I couldn't be buffaloing you couldn't be buffaloing he couldn't be buffaloing we couldn't be buffaloing you couldn't be buffaloing they couldn't be buffaloing
Perfect	V-ing perfect
I couldn't have buffaloed you couldn't have buffaloed he couldn't have buffaloed we couldn't have buffaloed you couldn't have buffaloed they couldn't have buffaloed	I couldn't have been buffaloing you couldn't have been buffaloing he couldn't have been buffaloing we couldn't have been buffaloing you couldn't have been buffaloing they couldn't have been buffaloing

Interrogative form

Simple form	V-ing form
could I buffalo? could you buffalo? could he buffalo? could we buffalo? could you buffalo? could they buffalo?	could I be buffaloing? could you be buffaloing? could he be buffaloing? could we be buffaloing? could you be buffaloing? could they be buffaloing?
Perfect	V-ing perfect
could I have buffaloed? could you have buffaloed? could he have buffaloed? could we have buffaloed? could you have buffaloed? could they have buffaloed?	could I have been buffaloing? could you have been buffaloing? could he have been buffaloing? could we have been buffaloing? could you have been buffaloing? could they have been buffaloing?

Interro-negative form

Simple form	V-ing form
couldn't I buffalo? couldn't you buffalo? couldn't he buffalo? couldn't we buffalo? couldn't you buffalo? couldn't they buffalo?	couldn't I be buffaloing? couldn't you be buffaloing? couldn't he be buffaloing? couldn't we be buffaloing? couldn't you be buffaloing? couldn't they be buffaloing?
Perfect	V-ing perfect
couldn't I have buffaloed? couldn't you have buffaloed? couldn't he have buffaloed? couldn't we have buffaloed? couldn't you have buffaloed? couldn't they have buffaloed?	couldn't I have been buffaloing? couldn't you have been buffaloing? couldn't he have been buffaloing? couldn't we have been buffaloing? couldn't you have been buffaloing? couldn't they have been buffaloing?