can riffle
Verbo regular: riffle - riffled- riffled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can riffle
you can riffle
he can riffle
we can riffle
you can riffle
they can riffle 	I can be riffling
you can be riffling
he can be riffling
we can be riffling
you can be riffling
they can be riffling	I can have riffled
you can have riffled
he can have riffled
we can have riffled
you can have riffled
they can have riffled	I can have been riffling
you can have been riffling
he can have been riffling
we can have been riffling
you can have been riffling
they can have been riffling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot riffle
you cannot riffle
he cannot riffle
we cannot riffle
you cannot riffle
they cannot riffle 	I cannot be riffling
you cannot be riffling
he cannot be riffling
we cannot be riffling
you cannot be riffling
they cannot be riffling	I cannot have riffled
you cannot have riffled
he cannot have riffled
we cannot have riffled
you cannot have riffled
they cannot have riffled	I cannot have been riffling
you cannot have been riffling
he cannot have been riffling
we cannot have been riffling
you cannot have been riffling
they cannot have been riffling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I riffle?
can you riffle?
can he riffle?
can we riffle?
can you riffle?
can they riffle? 	can I be riffling?
can you be riffling?
can he be riffling?
can we be riffling?
can you be riffling?
can they be riffling? 	can I have riffled?
can you have riffled?
can he have riffled?
can we have riffled?
can you have riffled?
can they have riffled? 	can I have been riffling?
can you have been riffling?
can he have been riffling?
can we have been riffling?
can you have been riffling?
can they have been riffling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not riffle?
can you not riffle?
can he not riffle?
can we not riffle?
can you not riffle?
can they not riffle? 	can I not be riffling?
can you not be riffling?
can he not be riffling?
can we not be riffling?
can you not be riffling?
can they not be riffling? 	can I not have riffled?
can you not have riffled?
can he not have riffled?
can we not have riffled?
can you not have riffled?
can they not have riffled? 	can I not have been riffling?
can you not have been riffling?
can he not have been riffling?
can we not have been riffling?
can you not have been riffling?
can they not have been riffling?