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 couldn't scan
you couldn't scan
he couldn't scan
we couldn't scan
you couldn't scan
they couldn't scan

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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