can yo-yo
Verbo regular: yo-yo - yo-yoed- yo-yoed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can yo-yo
you can yo-yo
he can yo-yo
we can yo-yo
you can yo-yo
they can yo-yo 	I can be yo-yoing
you can be yo-yoing
he can be yo-yoing
we can be yo-yoing
you can be yo-yoing
they can be yo-yoing	I can have yo-yoed
you can have yo-yoed
he can have yo-yoed
we can have yo-yoed
you can have yo-yoed
they can have yo-yoed	I can have been yo-yoing
you can have been yo-yoing
he can have been yo-yoing
we can have been yo-yoing
you can have been yo-yoing
they can have been yo-yoing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot yo-yo
you cannot yo-yo
he cannot yo-yo
we cannot yo-yo
you cannot yo-yo
they cannot yo-yo 	I cannot be yo-yoing
you cannot be yo-yoing
he cannot be yo-yoing
we cannot be yo-yoing
you cannot be yo-yoing
they cannot be yo-yoing	I cannot have yo-yoed
you cannot have yo-yoed
he cannot have yo-yoed
we cannot have yo-yoed
you cannot have yo-yoed
they cannot have yo-yoed	I cannot have been yo-yoing
you cannot have been yo-yoing
he cannot have been yo-yoing
we cannot have been yo-yoing
you cannot have been yo-yoing
they cannot have been yo-yoing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I yo-yo?
can you yo-yo?
can he yo-yo?
can we yo-yo?
can you yo-yo?
can they yo-yo? 	can I be yo-yoing?
can you be yo-yoing?
can he be yo-yoing?
can we be yo-yoing?
can you be yo-yoing?
can they be yo-yoing? 	can I have yo-yoed?
can you have yo-yoed?
can he have yo-yoed?
can we have yo-yoed?
can you have yo-yoed?
can they have yo-yoed? 	can I have been yo-yoing?
can you have been yo-yoing?
can he have been yo-yoing?
can we have been yo-yoing?
can you have been yo-yoing?
can they have been yo-yoing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not yo-yo?
can you not yo-yo?
can he not yo-yo?
can we not yo-yo?
can you not yo-yo?
can they not yo-yo? 	can I not be yo-yoing?
can you not be yo-yoing?
can he not be yo-yoing?
can we not be yo-yoing?
can you not be yo-yoing?
can they not be yo-yoing? 	can I not have yo-yoed?
can you not have yo-yoed?
can he not have yo-yoed?
can we not have yo-yoed?
can you not have yo-yoed?
can they not have yo-yoed? 	can I not have been yo-yoing?
can you not have been yo-yoing?
can he not have been yo-yoing?
can we not have been yo-yoing?
can you not have been yo-yoing?
can they not have been yo-yoing?