English verb conjugation COULD SKATE

Regular verb: skate - skated - skated

Affirmation

Simple form

I could skate
you could skate
he could skate
we could skate
you could skate
they could skate

V-ing form

I could be skating
you could be skating
he could be skating
we could be skating
you could be skating
they could be skating

Perfect

I could have skated
you could have skated
he could have skated
we could have skated
you could have skated
they could have skated

V-ing perfect

I could have been skating
you could have been skating
he could have been skating
we could have been skating
you could have been skating
they could have been skating

Negation

Simple form

I couldn't skate
you couldn't skate
he couldn't skate
we couldn't skate
you couldn't skate
they couldn't skate

V-ing form

I couldn't be skating
you couldn't be skating
he couldn't be skating
we couldn't be skating
you couldn't be skating
they couldn't be skating

Perfect

I couldn't have skated
you couldn't have skated
he couldn't have skated
we couldn't have skated
you couldn't have skated
they couldn't have skated

V-ing perfect

I couldn't have been skating
you couldn't have been skating
he couldn't have been skating
we couldn't have been skating
you couldn't have been skating
they couldn't have been skating

Interrogative form

Simple form

could I skate?
could you skate?
could he skate?
could we skate?
could you skate?
could they skate?

V-ing form

could I be skating?
could you be skating?
could he be skating?
could we be skating?
could you be skating?
could they be skating?

Perfect

could I have skated?
could you have skated?
could he have skated?
could we have skated?
could you have skated?
could they have skated?

V-ing perfect

could I have been skating?
could you have been skating?
could he have been skating?
could we have been skating?
could you have been skating?
could they have been skating?

Interro-negative form

Simple form

couldn't I skate?
couldn't you skate?
couldn't he skate?
couldn't we skate?
couldn't you skate?
couldn't they skate?

V-ing form

couldn't I be skating?
couldn't you be skating?
couldn't he be skating?
couldn't we be skating?
couldn't you be skating?
couldn't they be skating?

Perfect

couldn't I have skated?
couldn't you have skated?
couldn't he have skated?
couldn't we have skated?
couldn't you have skated?
couldn't they have skated?

V-ing perfect

couldn't I have been skating?
couldn't you have been skating?
couldn't he have been skating?
couldn't we have been skating?
couldn't you have been skating?
couldn't they have been skating?

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