can gravel
Verbo regular: gravel - gravelled- gravelled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can gravel
you can gravel
she can gravel
we can gravel
you can gravel
they can gravel 	I can be gravelling
you can be gravelling
she can be gravelling
we can be gravelling
you can be gravelling
they can be gravelling	I can have gravelled
you can have gravelled
she can have gravelled
we can have gravelled
you can have gravelled
they can have gravelled	I can have been gravelling
you can have been gravelling
she can have been gravelling
we can have been gravelling
you can have been gravelling
they can have been gravelling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot gravel
you cannot gravel
she cannot gravel
we cannot gravel
you cannot gravel
they cannot gravel 	I cannot be gravelling
you cannot be gravelling
she cannot be gravelling
we cannot be gravelling
you cannot be gravelling
they cannot be gravelling	I cannot have gravelled
you cannot have gravelled
she cannot have gravelled
we cannot have gravelled
you cannot have gravelled
they cannot have gravelled	I cannot have been gravelling
you cannot have been gravelling
she cannot have been gravelling
we cannot have been gravelling
you cannot have been gravelling
they cannot have been gravelling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I gravel?
can you gravel?
can she gravel?
can we gravel?
can you gravel?
can they gravel? 	can I be gravelling?
can you be gravelling?
can she be gravelling?
can we be gravelling?
can you be gravelling?
can they be gravelling? 	can I have gravelled?
can you have gravelled?
can she have gravelled?
can we have gravelled?
can you have gravelled?
can they have gravelled? 	can I have been gravelling?
can you have been gravelling?
can she have been gravelling?
can we have been gravelling?
can you have been gravelling?
can they have been gravelling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not gravel?
can you not gravel?
can she not gravel?
can we not gravel?
can you not gravel?
can they not gravel? 	can I not be gravelling?
can you not be gravelling?
can she not be gravelling?
can we not be gravelling?
can you not be gravelling?
can they not be gravelling? 	can I not have gravelled?
can you not have gravelled?
can she not have gravelled?
can we not have gravelled?
can you not have gravelled?
can they not have gravelled? 	can I not have been gravelling?
can you not have been gravelling?
can she not have been gravelling?
can we not have been gravelling?
can you not have been gravelling?
can they not have been gravelling?