English verb conjugation COULD SKATEBOARD

Regular verb: skateboard - skateboarded - skateboarded

Affirmation

Simple form

I could skateboard
you could skateboard
he could skateboard
we could skateboard
you could skateboard
they could skateboard

V-ing form

I could be skateboarding
you could be skateboarding
he could be skateboarding
we could be skateboarding
you could be skateboarding
they could be skateboarding

Perfect

I could have skateboarded
you could have skateboarded
he could have skateboarded
we could have skateboarded
you could have skateboarded
they could have skateboarded

V-ing perfect

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

Negation

Simple form

I could not skateboard
you could not skateboard
he could not skateboard
we could not skateboard
you could not skateboard
they could not skateboard

V-ing form

I could not be skateboarding
you could not be skateboarding
he could not be skateboarding
we could not be skateboarding
you could not be skateboarding
they could not be skateboarding

Perfect

I could not have skateboarded
you could not have skateboarded
he could not have skateboarded
we could not have skateboarded
you could not have skateboarded
they could not have skateboarded

V-ing perfect

I could not have been skateboarding
you could not have been skateboarding
he could not have been skateboarding
we could not have been skateboarding
you could not have been skateboarding
they could not have been skateboarding

Interrogative form

Simple form

could I skateboard?
could you skateboard?
could he skateboard?
could we skateboard?
could you skateboard?
could they skateboard?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not skateboard?
could you not skateboard?
could he not skateboard?
could we not skateboard?
could you not skateboard?
could they not skateboard?

V-ing form

could I not be skateboarding?
could you not be skateboarding?
could he not be skateboarding?
could we not be skateboarding?
could you not be skateboarding?
could they not be skateboarding?

Perfect

could I not have skateboarded?
could you not have skateboarded?
could he not have skateboarded?
could we not have skateboarded?
could you not have skateboarded?
could they not have skateboarded?

V-ing perfect

could I not have been skateboarding?
could you not have been skateboarding?
could he not have been skateboarding?
could we not have been skateboarding?
could you not have been skateboarding?
could they not have been skateboarding?

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