ought to have +should

[ostap77]

"You ought to have brought your own 6-pack to the party, shouldn't you?"

Since text-books say that Americans prefer "should" to "ought to" in negative sentences and in questions, can I use them in one sentence?

[bhaisahab]

"You ought to have brought your own 6-pack to the party, shouldn't you?"

Since text-books say that Americans prefer "should" to "ought to" in negative sentences and in questions, can I use them in one sentence?

It's not at all natural like that. Use one or the other, don't mix them.

[ostap77]

It's not at all natural like that. Use one or the other, don't mix them.

"We ought to help them, shouldn’t we? (More natural than ought not we?)"

Learn English online - English Grammar - Modal auxiliary verb ought to

Would this be wrong?

[bhaisahab]

"We ought to help them, shouldn’t we? (More natural than ought not we?)"

Learn English online - English Grammar - Modal auxiliary verb ought to

Would this be wrong?

"oughtn't we" is perfectly natural.

[ostap77]

"oughtn't we" is perfectly natural.

Could someone on behalf of the AmE speakers express their opinion on the statement in post #3?

[riquecohen]

"We ought to help them, shouldn’t we? (More natural than ought not we?)"

Learn English online - English Grammar - Modal auxiliary verb ought to

Would this be wrong?

I can't say that this would be wrong, but I certainly agree with bhai's comment in post 2; don't mix them. While the link you've posted finds this acceptable, I wouldn't mix them, though many AmE-speakers do. I find "ought not we" awkward , but as bhai says, "oughtn't we" is perfectly natural. As for AmE usage, you will surely hear "should" more often than "ought to."