English verb conjugation COULD NIBBLE

Regular verb: nibble - nibbled - nibbled

Affirmation

Simple form

I could nibble
you could nibble
he could nibble
we could nibble
you could nibble
they could nibble

V-ing form

I could be nibbling
you could be nibbling
he could be nibbling
we could be nibbling
you could be nibbling
they could be nibbling

Perfect

I could have nibbled
you could have nibbled
he could have nibbled
we could have nibbled
you could have nibbled
they could have nibbled

V-ing perfect

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

Negation

Simple form

I could not nibble
you could not nibble
he could not nibble
we could not nibble
you could not nibble
they could not nibble

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I nibble?
could you nibble?
could he nibble?
could we nibble?
could you nibble?
could they nibble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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