English verb conjugation
CAN SKATE

Regular verb: skate - skated - skated

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I can't skate you can't skate she can't skate we can't skate you can't skate they can't skate	I can't be skating you can't be skating she can't be skating we can't be skating you can't be skating they can't be skating
Perfect	V-ing perfect
I can't have skated you can't have skated she can't have skated we can't have skated you can't have skated they can't have skated	I can't have been skating you can't have been skating she can't have been skating we can't have been skating you can't have been skating they can't have been skating

Interrogative form

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