Other Uses of Auxilaries

 FLATMATES.                                                         

You paid the rent yesterday, didn't you?

Yes I did, I paid 200€ because I didn't have enough money to pay.

Neither did I, but the nex week I'll pay the rest of the money.

Will you? So will I; If I forgot it, you could remember it.

I will, sure.

Thank you, I do have a poor memory!

QUESTION TAG

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AGREE

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EMPHASIS