I think she might be getting a bit old for this sort of travelling, isn't she?

[GeneD]

I think she might be getting a bit old for this sort of travelling, don’t you? This example is taken from here.

Would it be correct if rephrased as follows? I think she might be getting a bit old for this sort of travelling, isn't she? If not, is it possible at all to make the tag related to the second clause (She might be getting old)?

 

[teechar]

No, and no, I'm afraid.

 

[jutfrank]

It doesn't work with must as the auxiliary. You would have to use she's getting.

She's getting a bit old for travelling, isn't she?

If you preface the sentence with I think, the natural tag would be don't you?, but you could get away with the following if you said it in a way that placed enough focus on the she's getting.

I think she's getting a bit old for travelling, isn't she?

 

[GoesStation]

I think she's getting a bit old for travelling, isn't she?

That doesn't work for me. People sometimes lose the thread when they're talking, so I wouldn't be shocked to hear it, but it would stand out as a mistake.