English verb conjugation COULD BUTYLATE

Regular verb: butylate - butylated - butylated

Affirmation

Simple form

I could butylate
you could butylate
he could butylate
we could butylate
you could butylate
they could butylate

V-ing form

I could be butylating
you could be butylating
he could be butylating
we could be butylating
you could be butylating
they could be butylating

Perfect

I could have butylated
you could have butylated
he could have butylated
we could have butylated
you could have butylated
they could have butylated

V-ing perfect

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

Negation

Simple form

I could not butylate
you could not butylate
he could not butylate
we could not butylate
you could not butylate
they could not butylate

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I butylate?
could you butylate?
could he butylate?
could we butylate?
could you butylate?
could they butylate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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