She's almost 3 and speaks pretty well, I'd say
OK, then it is normal and should go away at about 4-5. If not, you may also find that other things are off too and then you can discuss it with your GP.
Thank you! :)
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At some degree, it is normal. It is a way to learn. How old is she and how is her vocabulary? If they do the same when they get a bit older and out of context, it would be something worth discussing with a GP.