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Ok. The whole sentence is:

Person A bandages Person B's arm.

Person B says: ありがとう。ずいぶん慣れた処置ね？看護婦でもやってたの？

I get what the sentences are saying.

But! For the life of me I can't parse ずいぶん慣れた処置ね？ into that makes any sense to
me. All I can come up with is: "You do very accustomed treatments." Which I
know barely makes any sense (grammatical or otherwise).

Can someone please break this down for me?
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2011-10-06T17:50:59.600
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question
grammar verbs learning
How does a noun phrase translate into a verb?
`慣れる` can also mean "become skilled at", so it's more like "You've become
quite skilled at this treatment. Were you a nurse or something?" More
literally, it would be like "This is a treatment at which you've become quite
skilled." There is a `です` that's omitted before `ね？`; if this wasn't obvious
to you, that may be the reason you had trouble with it. So there's no " **do**
" in it as you were thinking. It's an " **is** ".
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2011-10-06T18:22:01.440
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`ずいぶん` 'very' is an adverb and an intensifier modifying `慣れた` 'became
accustomed'. `ずいぶん慣れた` is a relative clause modifying `処置` 'treatment'.
`ずいぶん慣れた処置` is a nominal predicate. Here, its subject is omitted. The copula
`だ` is optionally omitted before certain elements including the sentence-final
particle `ね`. To reconstruct what is omitted, it would be like this:

> (あなたの処置は)ずいぶん慣れた処置(だ)ね。  
>  '(Your treatment) (is) a very accustomed treatment, isn't it?'
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2011-10-06T18:36:57.987
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I don't have much to add to the already posted answers, except you might be
interested in knowing that omitting the だ before ね is mostly female language,
and would rarely be used by males.

Of course, this distinction only applies after nouns and na-adjective stems,
since verbs and i-adjectives don't have a だ to begin with.

Another sentence ender that this phenomenon occurs for is よ:

> 好きよ！ I like/love you! (mainly female)
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