can snorkel
Regular verb: snorkel - snorkeled- snorkeled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can snorkel
you can snorkel
he can snorkel
we can snorkel
you can snorkel
they can snorkel 	I can be snorkeling
you can be snorkeling
he can be snorkeling
we can be snorkeling
you can be snorkeling
they can be snorkeling	I can have snorkeled
you can have snorkeled
he can have snorkeled
we can have snorkeled
you can have snorkeled
they can have snorkeled	I can have been snorkeling
you can have been snorkeling
he can have been snorkeling
we can have been snorkeling
you can have been snorkeling
they can have been snorkeling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't snorkel
you can't snorkel
he can't snorkel
we can't snorkel
you can't snorkel
they can't snorkel 	I can't be snorkeling
you can't be snorkeling
he can't be snorkeling
we can't be snorkeling
you can't be snorkeling
they can't be snorkeling	I can't have snorkeled
you can't have snorkeled
he can't have snorkeled
we can't have snorkeled
you can't have snorkeled
they can't have snorkeled	I can't have been snorkeling
you can't have been snorkeling
he can't have been snorkeling
we can't have been snorkeling
you can't have been snorkeling
they can't have been snorkeling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I snorkel?
can you snorkel?
can he snorkel?
can we snorkel?
can you snorkel?
can they snorkel? 	can I be snorkeling?
can you be snorkeling?
can he be snorkeling?
can we be snorkeling?
can you be snorkeling?
can they be snorkeling? 	can I have snorkeled?
can you have snorkeled?
can he have snorkeled?
can we have snorkeled?
can you have snorkeled?
can they have snorkeled? 	can I have been snorkeling?
can you have been snorkeling?
can he have been snorkeling?
can we have been snorkeling?
can you have been snorkeling?
can they have been snorkeling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I snorkel?
can't you snorkel?
can't he snorkel?
can't we snorkel?
can't you snorkel?
can't they snorkel? 	can't I be snorkeling?
can't you be snorkeling?
can't he be snorkeling?
can't we be snorkeling?
can't you be snorkeling?
can't they be snorkeling? 	can't I have snorkeled?
can't you have snorkeled?
can't he have snorkeled?
can't we have snorkeled?
can't you have snorkeled?
can't they have snorkeled? 	can't I have been snorkeling?
can't you have been snorkeling?
can't he have been snorkeling?
can't we have been snorkeling?
can't you have been snorkeling?
can't they have been snorkeling?