I can sneak you can sneak he can sneak we can sneak you can sneak they can sneak
Forma con V-ing
I can be sneaking you can be sneaking he can be sneaking we can be sneaking you can be sneaking they can be sneaking
Perfecto
I can have snuck you can have snuck he can have snuck we can have snuck you can have snuck they can have snuck
Perfecto con V-ing
I can have been sneaking you can have been sneaking he can have been sneaking we can have been sneaking you can have been sneaking they can have been sneaking
Negación
Forma simple
I cannot sneak you cannot sneak he cannot sneak we cannot sneak you cannot sneak they cannot sneak
Forma con V-ing
I cannot be sneaking you cannot be sneaking he cannot be sneaking we cannot be sneaking you cannot be sneaking they cannot be sneaking
Perfecto
I cannot have snuck you cannot have snuck he cannot have snuck we cannot have snuck you cannot have snuck they cannot have snuck
Perfecto con V-ing
I cannot have been sneaking you cannot have been sneaking he cannot have been sneaking we cannot have been sneaking you cannot have been sneaking they cannot have been sneaking
Forma interrogativa
Forma simple
can I sneak? can you sneak? can he sneak? can we sneak? can you sneak? can they sneak?
Forma con V-ing
can I be sneaking? can you be sneaking? can he be sneaking? can we be sneaking? can you be sneaking? can they be sneaking?
Perfecto
can I have snuck? can you have snuck? can he have snuck? can we have snuck? can you have snuck? can they have snuck?
Perfecto con V-ing
can I have been sneaking? can you have been sneaking? can he have been sneaking? can we have been sneaking? can you have been sneaking? can they have been sneaking?
Forma interro-negativa
Forma simple
can I not sneak? can you not sneak? can he not sneak? can we not sneak? can you not sneak? can they not sneak?
Forma con V-ing
can I not be sneaking? can you not be sneaking? can he not be sneaking? can we not be sneaking? can you not be sneaking? can they not be sneaking?
Perfecto
can I not have snuck? can you not have snuck? can he not have snuck? can we not have snuck? can you not have snuck? can they not have snuck?
Perfecto con V-ing
can I not have been sneaking? can you not have been sneaking? can he not have been sneaking? can we not have been sneaking? can you not have been sneaking? can they not have been sneaking?