English verb conjugation COULD SCAN

Regular verb: scan - scanned - scanned

Affirmation

Simple form

I could scan
you could scan
he could scan
we could scan
you could scan
they could scan

V-ing form

I could be scanning
you could be scanning
he could be scanning
we could be scanning
you could be scanning
they could be scanning

Perfect

I could have scanned
you could have scanned
he could have scanned
we could have scanned
you could have scanned
they could have scanned

V-ing perfect

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

Negation

Simple form

I could not scan
you could not scan
he could not scan
we could not scan
you could not scan
they could not scan

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I scan?
could you scan?
could he scan?
could we scan?
could you scan?
could they scan?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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