thoughts vs thought

[Molly]

The correct BrEng answer here is, of course, "thoughts", but am I right in thinking that Amercians would use "thought" there?

She said she would come, but now she’s having second __________________s.

[Yankee]

Ummmm, is that a smoke and mirrors question?
The blank line has an S at the end. Seems to me that if you place the word 'thought' on that line, you're going to end up with 'thoughts'. So, if what you want to know is whether "having second thoughts" is also used on this side of the pond, the answer is yes.
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[Molly]

I'll try to simplify the question: do AmEng speakers use "to have second thoughts", or do they use "to have second thought"?

[Lost_Soul]

http://www.english-test.net/forum/ftopic24771.html#83728

Why are you asking this question? have a short memory, eh ?

[Molly]

[Yankee]

.
And when (if) Molly thanks you profusely for going to the trouble of finding that thread for her, Alex, you can respond with this:

"Glad to help, Molly. Don't give it a second thought."


EDIT:
Well, now that Molly has edited out the additional question she asked, that may mean she's not interested in other collocations.

[Molly]

[Barb_D]

So the summary is that both sides of the Atlantic say "having second thoughts" but in BrE it's "on second thoughts" and in AmE it's "on second thought." Is that correct? (I didn't remember that part about the BrE "on second thoughts" though now that I read it, it rings a bell.)

[Yankee]

[MrPedantic]

[Molly]