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 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	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 	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'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? 	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?