The sentences are:
"That's what it takes, doesn't it?" 1,430 Google Search results.
"That's what it takes, isn't it?" 3,430 Google Search results.
Which one is the verb here, "takes" or "is"? Are both sentences correct?
[1] That' s what it takes, doesn't it ? [2] That' s what it takes, is n't it? The rule with tags is that if the anchor predicator (verb) is an auxiliary, select the same word, otherwise select "do".
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[1] That's what it takes, doesn't it?
[2] That's what it takes, isn't it?
The rule with tags is that if the anchor predicator (verb) is an auxiliary, select the same word, otherwise select "do".
Here, the anchor predicator is the auxiliary verb "is" so it follows that the verb in the tag should also be "is".
[2] is