can wall
Verbo regular: wall - walled- walled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can wall
you can wall
she can wall
we can wall
you can wall
they can wall 	I can be walling
you can be walling
she can be walling
we can be walling
you can be walling
they can be walling	I can have walled
you can have walled
she can have walled
we can have walled
you can have walled
they can have walled	I can have been walling
you can have been walling
she can have been walling
we can have been walling
you can have been walling
they can have been walling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot wall
you cannot wall
she cannot wall
we cannot wall
you cannot wall
they cannot wall 	I cannot be walling
you cannot be walling
she cannot be walling
we cannot be walling
you cannot be walling
they cannot be walling	I cannot have walled
you cannot have walled
she cannot have walled
we cannot have walled
you cannot have walled
they cannot have walled	I cannot have been walling
you cannot have been walling
she cannot have been walling
we cannot have been walling
you cannot have been walling
they cannot have been walling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I wall?
can you wall?
can she wall?
can we wall?
can you wall?
can they wall? 	can I be walling?
can you be walling?
can she be walling?
can we be walling?
can you be walling?
can they be walling? 	can I have walled?
can you have walled?
can she have walled?
can we have walled?
can you have walled?
can they have walled? 	can I have been walling?
can you have been walling?
can she have been walling?
can we have been walling?
can you have been walling?
can they have been walling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not wall?
can you not wall?
can she not wall?
can we not wall?
can you not wall?
can they not wall? 	can I not be walling?
can you not be walling?
can she not be walling?
can we not be walling?
can you not be walling?
can they not be walling? 	can I not have walled?
can you not have walled?
can she not have walled?
can we not have walled?
can you not have walled?
can they not have walled? 	can I not have been walling?
can you not have been walling?
can she not have been walling?
can we not have been walling?
can you not have been walling?
can they not have been walling?