English verb conjugation COULD SAIL SAIL

Regular verb: sail sail - sail sailed - sail sailed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form

I could sail sail
you could sail sail
he could sail sail
we could sail sail
you could sail sail
they could sail sail

V-ing form

I could be sail sailing
you could be sail sailing
he could be sail sailing
we could be sail sailing
you could be sail sailing
they could be sail sailing

Perfect

I could have sail sailed
you could have sail sailed
he could have sail sailed
we could have sail sailed
you could have sail sailed
they could have sail sailed

V-ing perfect

I could have been sail sailing
you could have been sail sailing
he could have been sail sailing
we could have been sail sailing
you could have been sail sailing
they could have been sail sailing

Negation

Simple form

I could not sail sail
you could not sail sail
he could not sail sail
we could not sail sail
you could not sail sail
they could not sail sail

V-ing form

I could not be sail sailing
you could not be sail sailing
he could not be sail sailing
we could not be sail sailing
you could not be sail sailing
they could not be sail sailing

Perfect

I could not have sail sailed
you could not have sail sailed
he could not have sail sailed
we could not have sail sailed
you could not have sail sailed
they could not have sail sailed

V-ing perfect

I could not have been sail sailing
you could not have been sail sailing
he could not have been sail sailing
we could not have been sail sailing
you could not have been sail sailing
they could not have been sail sailing

Interrogative form

Simple form

could I sail sail?
could you sail sail?
could he sail sail?
could we sail sail?
could you sail sail?
could they sail sail?

V-ing form

could I be sail sailing?
could you be sail sailing?
could he be sail sailing?
could we be sail sailing?
could you be sail sailing?
could they be sail sailing?

Perfect

could I have sail sailed?
could you have sail sailed?
could he have sail sailed?
could we have sail sailed?
could you have sail sailed?
could they have sail sailed?

V-ing perfect

could I have been sail sailing?
could you have been sail sailing?
could he have been sail sailing?
could we have been sail sailing?
could you have been sail sailing?
could they have been sail sailing?

Interro-negative form

Simple form

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

V-ing form

could I not be sail sailing?
could you not be sail sailing?
could he not be sail sailing?
could we not be sail sailing?
could you not be sail sailing?
could they not be sail sailing?

Perfect

could I not have sail sailed?
could you not have sail sailed?
could he not have sail sailed?
could we not have sail sailed?
could you not have sail sailed?
could they not have sail sailed?

V-ing perfect

could I not have been sail sailing?
could you not have been sail sailing?
could he not have been sail sailing?
could we not have been sail sailing?
could you not have been sail sailing?
could they not have been sail sailing?

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