can skate
Regular verb: skate - skated- skated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can skate
you can skate
she can skate
we can skate
you can skate
they can skate 	I can be skating
you can be skating
she can be skating
we can be skating
you can be skating
they can be skating	I can have skated
you can have skated
she can have skated
we can have skated
you can have skated
they can have skated	I can have been skating
you can have been skating
she can have been skating
we can have been skating
you can have been skating
they can have been skating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot skate
you cannot skate
she cannot skate
we cannot skate
you cannot skate
they cannot skate 	I cannot be skating
you cannot be skating
she cannot be skating
we cannot be skating
you cannot be skating
they cannot be skating	I cannot have skated
you cannot have skated
she cannot have skated
we cannot have skated
you cannot have skated
they cannot have skated	I cannot have been skating
you cannot have been skating
she cannot have been skating
we cannot have been skating
you cannot have been skating
they cannot have been skating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I skate?
can you skate?
can she skate?
can we skate?
can you skate?
can they skate? 	can I be skating?
can you be skating?
can she be skating?
can we be skating?
can you be skating?
can they be skating? 	can I have skated?
can you have skated?
can she have skated?
can we have skated?
can you have skated?
can they have skated? 	can I have been skating?
can you have been skating?
can she have been skating?
can we have been skating?
can you have been skating?
can they have been skating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not skate?
can you not skate?
can she not skate?
can we not skate?
can you not skate?
can they not skate? 	can I not be skating?
can you not be skating?
can she not be skating?
can we not be skating?
can you not be skating?
can they not be skating? 	can I not have skated?
can you not have skated?
can she not have skated?
can we not have skated?
can you not have skated?
can they not have skated? 	can I not have been skating?
can you not have been skating?
can she not have been skating?
can we not have been skating?
can you not have been skating?
can they not have been skating?