Question

1. I ought to go by plane, shouldn't I?

2. I ought to go by plane, oughtn't I?
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Which tag question is right?

Answer 1

I would say shouldn't. They taught me, if you read it without the n't, anad say should not or ought not, should not sounds correct. I probably learned that rule 10 years ago and it usually works. Wait for Ms. Sue though.