English verb conjugation
CAN BEEF

Regular verb: beef - beefed - beefed

Affirmation

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

Negation

Simple form	V-ing form
I can't beef you can't beef he can't beef we can't beef you can't beef they can't beef	I can't be beefing you can't be beefing he can't be beefing we can't be beefing you can't be beefing they can't be beefing
Perfect	V-ing perfect
I can't have beefed you can't have beefed he can't have beefed we can't have beefed you can't have beefed they can't have beefed	I can't have been beefing you can't have been beefing he can't have been beefing we can't have been beefing you can't have been beefing they can't have been beefing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I beef? can't you beef? can't he beef? can't we beef? can't you beef? can't they beef?	can't I be beefing? can't you be beefing? can't he be beefing? can't we be beefing? can't you be beefing? can't they be beefing?
Perfect	V-ing perfect
can't I have beefed? can't you have beefed? can't he have beefed? can't we have beefed? can't you have beefed? can't they have beefed?	can't I have been beefing? can't you have been beefing? can't he have been beefing? can't we have been beefing? can't you have been beefing? can't they have been beefing?