English verb conjugation COULD TARNISH

Regular verb: tarnish - tarnished - tarnished

Affirmation

Simple form

I could tarnish
you could tarnish
he could tarnish
we could tarnish
you could tarnish
they could tarnish

V-ing form

I could be tarnishing
you could be tarnishing
he could be tarnishing
we could be tarnishing
you could be tarnishing
they could be tarnishing

Perfect

I could have tarnished
you could have tarnished
he could have tarnished
we could have tarnished
you could have tarnished
they could have tarnished

V-ing perfect

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

Negation

Simple form

I could not tarnish
you could not tarnish
he could not tarnish
we could not tarnish
you could not tarnish
they could not tarnish

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I tarnish?
could you tarnish?
could he tarnish?
could we tarnish?
could you tarnish?
could they tarnish?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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