English verb conjugation COULD UNDERSELL

Irregular verb: undersell - undersold - undersold

Affirmation

Simple form

I could undersell
you could undersell
he could undersell
we could undersell
you could undersell
they could undersell

V-ing form

I could be underselling
you could be underselling
he could be underselling
we could be underselling
you could be underselling
they could be underselling

Perfect

I could have undersold
you could have undersold
he could have undersold
we could have undersold
you could have undersold
they could have undersold

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I undersell?
could you undersell?
could he undersell?
could we undersell?
could you undersell?
could they undersell?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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