can mess
Verbo regular: mess - messed- messed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can mess
you can mess
she can mess
we can mess
you can mess
they can mess 	I can be messing
you can be messing
she can be messing
we can be messing
you can be messing
they can be messing	I can have messed
you can have messed
she can have messed
we can have messed
you can have messed
they can have messed	I can have been messing
you can have been messing
she can have been messing
we can have been messing
you can have been messing
they can have been messing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot mess
you cannot mess
she cannot mess
we cannot mess
you cannot mess
they cannot mess 	I cannot be messing
you cannot be messing
she cannot be messing
we cannot be messing
you cannot be messing
they cannot be messing	I cannot have messed
you cannot have messed
she cannot have messed
we cannot have messed
you cannot have messed
they cannot have messed	I cannot have been messing
you cannot have been messing
she cannot have been messing
we cannot have been messing
you cannot have been messing
they cannot have been messing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I mess?
can you mess?
can she mess?
can we mess?
can you mess?
can they mess? 	can I be messing?
can you be messing?
can she be messing?
can we be messing?
can you be messing?
can they be messing? 	can I have messed?
can you have messed?
can she have messed?
can we have messed?
can you have messed?
can they have messed? 	can I have been messing?
can you have been messing?
can she have been messing?
can we have been messing?
can you have been messing?
can they have been messing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not mess?
can you not mess?
can she not mess?
can we not mess?
can you not mess?
can they not mess? 	can I not be messing?
can you not be messing?
can she not be messing?
can we not be messing?
can you not be messing?
can they not be messing? 	can I not have messed?
can you not have messed?
can she not have messed?
can we not have messed?
can you not have messed?
can they not have messed? 	can I not have been messing?
can you not have been messing?
can she not have been messing?
can we not have been messing?
can you not have been messing?
can they not have been messing?