请文这句句子中的when怎么分析？

渔夫和妖怪

In  America President Donald Trump has been sparring with state governors over who (the president) should decide what (the public sector) reopens when (in may).

sabrina2111

渔夫和妖怪 发表于 2020-9-21 11:16
; V. p# j" D: \In  America President Donald Trump has been sparring with state governors over who (the president) s ...

这样一标注，感觉when就是个状语。但是一般都是作为疑问句的疑问词放到句子开头，这里还是像其它状语那样放在句子结尾。大神，可以这样理解吗？？？

mxh3698

In  America President Donald Trump has been sparring with state governors over 【who  should decide what  reopens &when】 .
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【 】中间的部分是 sparring  over 的宾语  what和when 是 decide的宾语
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sabrina2111

这和我最开始想的一样。可是为什么可以省掉and呢?还是漏掉了？还是有其他什么花头？

pan

Yes, I agree that it's meant to say "and when".  

Native speakers can be sloppy, too.

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mxh3698

pan 发表于 2020-9-27 16:29
Yes, I agree that it's meant to say "and when".  
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Native speakers can be sloppy, too.

yeah, see eye to eye with you.
not that there is anything wrong with hair splitting, but as I see it, the time spent on parsing could be more usefully spent on other things.

pan

Hi Mxh,
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( a, r# L1 i8 I( [9 c* Y+ ~I can see that you are a very detail-oriented person, which is a nice quiality to have when it comes to learning English.
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4 x, Y* c+ `/ v4 ^/ j: s6 B5 kIt's indeed frustrating that what we confuses us turns out to be not the depth of the language but the sloppiness on the writer's side. Maybe these articles are never meant to be teaching materials in the first place.
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渔夫和妖怪

195. Yet as the news sinks in, there is a kerfuffle with current and former bank executives over who knew what when. Dec 29, 2014 - Forbes
111. The narrative flags and becomes a bit fuzzy during this section of "Lambert & Stamp," and Cooper never quite makes clear who did what when. May 1, 2015 - Washington Post
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sabrina2111

) P7 u# D5 w; @' [) x7 ~" `刚刚以为高清楚了，结果又来2个例子。我不开森！不开森！