can top
Verbo regular: top - topped- topped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can top
you can top
he can top
we can top
you can top
they can top 	I can be topping
you can be topping
he can be topping
we can be topping
you can be topping
they can be topping	I can have topped
you can have topped
he can have topped
we can have topped
you can have topped
they can have topped	I can have been topping
you can have been topping
he can have been topping
we can have been topping
you can have been topping
they can have been topping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot top
you cannot top
he cannot top
we cannot top
you cannot top
they cannot top 	I cannot be topping
you cannot be topping
he cannot be topping
we cannot be topping
you cannot be topping
they cannot be topping	I cannot have topped
you cannot have topped
he cannot have topped
we cannot have topped
you cannot have topped
they cannot have topped	I cannot have been topping
you cannot have been topping
he cannot have been topping
we cannot have been topping
you cannot have been topping
they cannot have been topping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I top?
can you top?
can he top?
can we top?
can you top?
can they top? 	can I be topping?
can you be topping?
can he be topping?
can we be topping?
can you be topping?
can they be topping? 	can I have topped?
can you have topped?
can he have topped?
can we have topped?
can you have topped?
can they have topped? 	can I have been topping?
can you have been topping?
can he have been topping?
can we have been topping?
can you have been topping?
can they have been topping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not top?
can you not top?
can he not top?
can we not top?
can you not top?
can they not top? 	can I not be topping?
can you not be topping?
can he not be topping?
can we not be topping?
can you not be topping?
can they not be topping? 	can I not have topped?
can you not have topped?
can he not have topped?
can we not have topped?
can you not have topped?
can they not have topped? 	can I not have been topping?
can you not have been topping?
can he not have been topping?
can we not have been topping?
can you not have been topping?
can they not have been topping?