can beef
Regular verb: beef - beefed- beefed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I cannot beef
you cannot beef
he cannot beef
we cannot beef
you cannot beef
they cannot beef 	I cannot be beefing
you cannot be beefing
he cannot be beefing
we cannot be beefing
you cannot be beefing
they cannot be beefing	I cannot have beefed
you cannot have beefed
he cannot have beefed
we cannot have beefed
you cannot have beefed
they cannot have beefed	I cannot have been beefing
you cannot have been beefing
he cannot have been beefing
we cannot have been beefing
you cannot have been beefing
they cannot have been beefing	

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