can sneak
Irregular verb: sneak - sneaked, snuck- snuck

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sneak
you can sneak
he can sneak
we can sneak
you can sneak
they can sneak 	I can be sneaking
you can be sneaking
he can be sneaking
we can be sneaking
you can be sneaking
they can be sneaking	I can have snuck
you can have snuck
he can have snuck
we can have snuck
you can have snuck
they can have snuck	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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot sneak
you cannot sneak
he cannot sneak
we cannot sneak
you cannot sneak
they cannot sneak 	I cannot be sneaking
you cannot be sneaking
he cannot be sneaking
we cannot be sneaking
you cannot be sneaking
they cannot be sneaking	I cannot have snuck
you cannot have snuck
he cannot have snuck
we cannot have snuck
you cannot have snuck
they cannot have snuck	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	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sneak?
can you sneak?
can he sneak?
can we sneak?
can you sneak?
can they sneak? 	can I be sneaking?
can you be sneaking?
can he be sneaking?
can we be sneaking?
can you be sneaking?
can they be sneaking? 	can I have snuck?
can you have snuck?
can he have snuck?
can we have snuck?
can you have snuck?
can they have snuck? 	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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not sneak?
can you not sneak?
can he not sneak?
can we not sneak?
can you not sneak?
can they not sneak? 	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? 	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? 	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?