can bull
Verbo regular: bull - bulled- bulled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can bull
you can bull
he can bull
we can bull
you can bull
they can bull 	I can be bulling
you can be bulling
he can be bulling
we can be bulling
you can be bulling
they can be bulling	I can have bulled
you can have bulled
he can have bulled
we can have bulled
you can have bulled
they can have bulled	I can have been bulling
you can have been bulling
he can have been bulling
we can have been bulling
you can have been bulling
they can have been bulling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot bull
you cannot bull
he cannot bull
we cannot bull
you cannot bull
they cannot bull 	I cannot be bulling
you cannot be bulling
he cannot be bulling
we cannot be bulling
you cannot be bulling
they cannot be bulling	I cannot have bulled
you cannot have bulled
he cannot have bulled
we cannot have bulled
you cannot have bulled
they cannot have bulled	I cannot have been bulling
you cannot have been bulling
he cannot have been bulling
we cannot have been bulling
you cannot have been bulling
they cannot have been bulling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I bull?
can you bull?
can he bull?
can we bull?
can you bull?
can they bull? 	can I be bulling?
can you be bulling?
can he be bulling?
can we be bulling?
can you be bulling?
can they be bulling? 	can I have bulled?
can you have bulled?
can he have bulled?
can we have bulled?
can you have bulled?
can they have bulled? 	can I have been bulling?
can you have been bulling?
can he have been bulling?
can we have been bulling?
can you have been bulling?
can they have been bulling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not bull?
can you not bull?
can he not bull?
can we not bull?
can you not bull?
can they not bull? 	can I not be bulling?
can you not be bulling?
can he not be bulling?
can we not be bulling?
can you not be bulling?
can they not be bulling? 	can I not have bulled?
can you not have bulled?
can he not have bulled?
can we not have bulled?
can you not have bulled?
can they not have bulled? 	can I not have been bulling?
can you not have been bulling?
can he not have been bulling?
can we not have been bulling?
can you not have been bulling?
can they not have been bulling?