English verb conjugation
COULD BEEF

Regular verb: beef - beefed - beefed

Affirmation

Simple form	V-ing form
I could beef you could beef she could beef we could beef you could beef they could beef	I could be beefing you could be beefing she could be beefing we could be beefing you could be beefing they could be beefing
Perfect	V-ing perfect
I could have beefed you could have beefed she could have beefed we could have beefed you could have beefed they could have beefed	I could have been beefing you could have been beefing she could have been beefing we could have been beefing you could have been beefing they could have been beefing

Negation

Simple form	V-ing form
I could not beef you could not beef she could not beef we could not beef you could not beef they could not beef	I could not be beefing you could not be beefing she could not be beefing we could not be beefing you could not be beefing they could not be beefing
Perfect	V-ing perfect
I could not have beefed you could not have beefed she could not have beefed we could not have beefed you could not have beefed they could not have beefed	I could not have been beefing you could not have been beefing she could not have been beefing we could not have been beefing you could not have been beefing they could not have been beefing

Interrogative form

Simple form	V-ing form
could I beef? could you beef? could she beef? could we beef? could you beef? could they beef?	could I be beefing? could you be beefing? could she be beefing? could we be beefing? could you be beefing? could they be beefing?
Perfect	V-ing perfect
could I have beefed? could you have beefed? could she have beefed? could we have beefed? could you have beefed? could they have beefed?	could I have been beefing? could you have been beefing? could she have been beefing? could we have been beefing? could you have been beefing? could they have been beefing?

Interro-negative form

Simple form	V-ing form
could I not beef? could you not beef? could she not beef? could we not beef? could you not beef? could they not beef?	could I not be beefing? could you not be beefing? could she not be beefing? could we not be beefing? could you not be beefing? could they not be beefing?
Perfect	V-ing perfect
could I not have beefed? could you not have beefed? could she not have beefed? could we not have beefed? could you not have beefed? could they not have beefed?	could I not have been beefing? could you not have been beefing? could she not have been beefing? could we not have been beefing? could you not have been beefing? could they not have been beefing?