can birl
Verbo regular: birl - birled- birled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can birl
you can birl
he can birl
we can birl
you can birl
they can birl 	I can be birling
you can be birling
he can be birling
we can be birling
you can be birling
they can be birling	I can have birled
you can have birled
he can have birled
we can have birled
you can have birled
they can have birled	I can have been birling
you can have been birling
he can have been birling
we can have been birling
you can have been birling
they can have been birling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot birl
you cannot birl
he cannot birl
we cannot birl
you cannot birl
they cannot birl 	I cannot be birling
you cannot be birling
he cannot be birling
we cannot be birling
you cannot be birling
they cannot be birling	I cannot have birled
you cannot have birled
he cannot have birled
we cannot have birled
you cannot have birled
they cannot have birled	I cannot have been birling
you cannot have been birling
he cannot have been birling
we cannot have been birling
you cannot have been birling
they cannot have been birling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I birl?
can you birl?
can he birl?
can we birl?
can you birl?
can they birl? 	can I be birling?
can you be birling?
can he be birling?
can we be birling?
can you be birling?
can they be birling? 	can I have birled?
can you have birled?
can he have birled?
can we have birled?
can you have birled?
can they have birled? 	can I have been birling?
can you have been birling?
can he have been birling?
can we have been birling?
can you have been birling?
can they have been birling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not birl?
can you not birl?
can he not birl?
can we not birl?
can you not birl?
can they not birl? 	can I not be birling?
can you not be birling?
can he not be birling?
can we not be birling?
can you not be birling?
can they not be birling? 	can I not have birled?
can you not have birled?
can he not have birled?
can we not have birled?
can you not have birled?
can they not have birled? 	can I not have been birling?
can you not have been birling?
can he not have been birling?
can we not have been birling?
can you not have been birling?
can they not have been birling?