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 can't mess you can't mess he can't mess we can't mess you can't mess they can't mess
Forma con V-ing
I can't be messing you can't be messing he can't be messing we can't be messing you can't be messing they can't be messing
Perfecto
I can't have messed you can't have messed he can't have messed we can't have messed you can't have messed they can't have messed
Perfecto con V-ing
I can't have been messing you can't have been messing he can't have been messing we can't have been messing you can't have been messing they can't 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't I mess? can't you mess? can't he mess? can't we mess? can't you mess? can't they mess?
Forma con V-ing
can't I be messing? can't you be messing? can't he be messing? can't we be messing? can't you be messing? can't they be messing?
Perfecto
can't I have messed? can't you have messed? can't he have messed? can't we have messed? can't you have messed? can't they have messed?
Perfecto con V-ing
can't I have been messing? can't you have been messing? can't he have been messing? can't we have been messing? can't you have been messing? can't they have been messing?