I can mess you can mess he can mess we can mess you can mess they can mess
Forma con V-ing
I can be messing you can be messing he can be messing we can be messing you can be messing they can be messing
Perfecto
I can have messed you can have messed he can have messed we can have messed you can have messed they can have messed
Perfecto con V-ing
I can have been messing you can have been messing he can have been messing we can have been messing you can have been messing they can have been messing
Negación
Forma simple
I cannot mess you cannot mess he cannot mess we cannot mess you cannot mess they cannot mess
Forma con V-ing
I cannot be messing you cannot be messing he cannot be messing we cannot be messing you cannot be messing they cannot be messing
Perfecto
I cannot have messed you cannot have messed he cannot have messed we cannot have messed you cannot have messed they cannot have messed
Perfecto con V-ing
I cannot have been messing you cannot have been messing he cannot have been messing we cannot have been messing you cannot have been messing they cannot have been messing
Forma interrogativa
Forma simple
can I mess? can you mess? can he mess? can we mess? can you mess? can they mess?
Forma con V-ing
can I be messing? can you be messing? can he be messing? can we be messing? can you be messing? can they be messing?
Perfecto
can I have messed? can you have messed? can he have messed? can we have messed? can you have messed? can they have messed?
Perfecto con V-ing
can I have been messing? can you have been messing? can he have been messing? can we have been messing? can you have been messing? can they have been messing?
Forma interro-negativa
Forma simple
can I not mess? can you not mess? can he not mess? can we not mess? can you not mess? can they not mess?
Forma con V-ing
can I not be messing? can you not be messing? can he not be messing? can we not be messing? can you not be messing? can they not be messing?
Perfecto
can I not have messed? can you not have messed? can he not have messed? can we not have messed? can you not have messed? can they not have messed?
Perfecto con V-ing
can I not have been messing? can you not have been messing? can he not have been messing? can we not have been messing? can you not have been messing? can they not have been messing?