English verb conjugation COULD AUCTION

Regular verb: auction - auctioned - auctioned

Affirmation

Simple form

I could auction
you could auction
he could auction
we could auction
you could auction
they could auction

V-ing form

I could be auctioning
you could be auctioning
he could be auctioning
we could be auctioning
you could be auctioning
they could be auctioning

Perfect

I could have auctioned
you could have auctioned
he could have auctioned
we could have auctioned
you could have auctioned
they could have auctioned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I auction?
could you auction?
could he auction?
could we auction?
could you auction?
could they auction?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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