でも and other particles: conjunction, exclusion, and word order


I am not sure this has been asked here before. What I'm curious about is what
particles get replaced by でも in its hedging usage ("or something") and what
can occur alongside it and in what order?

It seems は, が, and を are always replaced. (I can't think of a context with を
in such a position but if it ever was, I'd imagine it'd also get replaced):

> ひまなら助詞の勉強でもしたら？ ([source](https://japanese.stackexchange.com/q/42204/30454))
>
> コーヒーでも、どうですか？ (ibid.)
>
> テレビでも見てちょうだい (ibid.)

But で seems necessary?

> 舞台袖ででも大人しくして ([source](https://japanese.stackexchange.com/q/13463/30454))

The most confusing is に which I'm not sure should come before or after でも or
even when it can be dropped.

> 旅行 **にでも** 行きますか
> ([source](https://plaza.rakuten.co.jp/asagirinoblog/diary/200509220000/))
>
> 愛車で海 **でもに** 行く？
> ([source](https://ameblo.jp/minaranminaran/entry-12654725874.html)) (this
> seems much less common?)
>
> 私は最近東京にきた田舎者なのですが、ひとりカラオケが好きで東京 **でも** 行こうと思っています。
> ([source](https://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1439350889))

And what about other particles: しか、とか、など、か、から、と、まで etc.?

> み～んな同じ映画だとでも言うつもりかい
> ([source](https://plaza.rakuten.co.jp/sunakake/diary/200610070000/))

So the quotative と comes before でも. What about 格助詞のと?

> 友達とでも行こう
> ([source](https://nukanoren.net/2019/04/06/%E7%B1%B3%E6%B4%A5%E7%8E%84%E5%B8%AB%E3%81%95%E3%82%93%EF%BC%88%E3%81%AB%E9%99%90%E3%82%89%E3%81%9A%EF%BC%89%E3%81%AE%E3%83%81%E3%82%B1%E3%83%83%E3%83%88%E3%82%92%E3%81%A8%E3%82%8B%E9%9A%9B%E3%81%AB/))

Should we assume all other particles behave similarly: comes before でも?




I think it is independent from でも whether a particle can be omitted.

> ひまなら助詞の勉強したら？
>
> コーヒー、どうですか？
>
> テレビ見てちょうだい

are all fine while

> 舞台袖大人しくして

is not. So 舞台袖 **で** でも cannot have で omitted.

でも comes after a particle.

  * 海でもに is not grammatical (maybe rarely possible colloquially).
  * 旅行行きますか is fine, so 旅行にでも and 旅行でも both work.
  * 東京でも行こう is a different usage. It is [で + も](https://dictionary.goo.ne.jp/word/%E3%81%A7%E3%82%82/#jn-152510): _also in Tokyo_
  * 友達行こう is not possible, so 友達とでも行こう is the only possibility.




I think it is independent from でも whether a particle can be omitted.

> ひまなら助詞の勉強したら？
>
> コーヒー、どうですか？
>
> テレビ見てちょうだい

are all fine while

> 舞台袖大人しくして

is not. So 舞台袖 **で** でも cannot have で omitted.

でも comes after a particle.

  * 海でもに is not grammatical (maybe rarely possible colloquially).
  * 旅行行きますか is fine, so 旅行にでも and 旅行でも both work.
  * 東京でも行こう is a different usage. It is [で + も](https://dictionary.goo.ne.jp/word/%E3%81%A7%E3%82%82/#jn-152510): _also in Tokyo_
  * 友達行こう is not possible, so 友達とでも行こう is the only possibility.

