can sled
Regular verb: sled - sleded- sleded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sled
you can sled
he can sled
we can sled
you can sled
they can sled 	I can be sleding
you can be sleding
he can be sleding
we can be sleding
you can be sleding
they can be sleding	I can have sleded
you can have sleded
he can have sleded
we can have sleded
you can have sleded
they can have sleded	I can have been sleding
you can have been sleding
he can have been sleding
we can have been sleding
you can have been sleding
they can have been sleding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot sled
you cannot sled
he cannot sled
we cannot sled
you cannot sled
they cannot sled 	I cannot be sleding
you cannot be sleding
he cannot be sleding
we cannot be sleding
you cannot be sleding
they cannot be sleding	I cannot have sleded
you cannot have sleded
he cannot have sleded
we cannot have sleded
you cannot have sleded
they cannot have sleded	I cannot have been sleding
you cannot have been sleding
he cannot have been sleding
we cannot have been sleding
you cannot have been sleding
they cannot have been sleding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sled?
can you sled?
can he sled?
can we sled?
can you sled?
can they sled? 	can I be sleding?
can you be sleding?
can he be sleding?
can we be sleding?
can you be sleding?
can they be sleding? 	can I have sleded?
can you have sleded?
can he have sleded?
can we have sleded?
can you have sleded?
can they have sleded? 	can I have been sleding?
can you have been sleding?
can he have been sleding?
can we have been sleding?
can you have been sleding?
can they have been sleding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not sled?
can you not sled?
can he not sled?
can we not sled?
can you not sled?
can they not sled? 	can I not be sleding?
can you not be sleding?
can he not be sleding?
can we not be sleding?
can you not be sleding?
can they not be sleding? 	can I not have sleded?
can you not have sleded?
can he not have sleded?
can we not have sleded?
can you not have sleded?
can they not have sleded? 	can I not have been sleding?
can you not have been sleding?
can he not have been sleding?
can we not have been sleding?
can you not have been sleding?
can they not have been sleding?