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 can't sneak
you can't sneak
he can't sneak
we can't sneak
you can't sneak
they can't sneak 	I can't be sneaking
you can't be sneaking
he can't be sneaking
we can't be sneaking
you can't be sneaking
they can't be sneaking	I can't have snuck
you can't have snuck
he can't have snuck
we can't have snuck
you can't have snuck
they can't have snuck	I can't have been sneaking
you can't have been sneaking
he can't have been sneaking
we can't have been sneaking
you can't have been sneaking
they can't 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't I sneak?
can't you sneak?
can't he sneak?
can't we sneak?
can't you sneak?
can't they sneak? 	can't I be sneaking?
can't you be sneaking?
can't he be sneaking?
can't we be sneaking?
can't you be sneaking?
can't they be sneaking? 	can't I have snuck?
can't you have snuck?
can't he have snuck?
can't we have snuck?
can't you have snuck?
can't they have snuck? 	can't I have been sneaking?
can't you have been sneaking?
can't he have been sneaking?
can't we have been sneaking?
can't you have been sneaking?
can't they have been sneaking?