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