VかV-negか vs. V | V-neg vs. Vかどうか


Is there any difference in meaning between these three structures? I think
they all roughly mean "whether or not" but are they interchangable? Examples
below:

> 両親は **賛成するかしないか** にかかわらず、僕は君と結婚します。

vs

> 明日 **来る来ない** にかかわらず、必ずわたしに電話してください。

vs

> 明日は仕事を **守れるかどうか** が不安だった。




All of the forms that you have listed have the same effective meaning and are
interchangeable, so long as they follow the proper context. Cross-searching
these examples on
[Weblio](https://thesaurus.weblio.jp/content/%E3%81%99%E3%82%8B%E3%81%97%E3%81%AA%E3%81%84),
they are pretty much all listed as synonyms, with some seemingly trivial usage
differences that I do not think will actually dissuade most speakers from
using them interchangeably.

> するかしないか standard colloquial
>
> するしない casual colloquial
>
> * * *
>
> するかどうか standard (spoken or written)
>
> するか否｛いな｝か formal (usually written); somewhat pedantic

To use as an example some advice once given by Master Yoda:

> 「やる」か、「やらない」かだけだ → OK
>
> 「やる」、「やらない」だけだ → OK
>
> 「やる」かどうかだけだ → a little strange (not quite casual enough)
>
> 「やる」か否かだけだ → strange (mixing formal with casual)

Finally, 「するのかしないのか、」or 「するのしないの、」 could be used to carry a separate nuance;
one of impatience and frustration; e.g. ‘So, are you going to do it or not!?’.

If someone has another take I will be happy to consider editing.




All of the forms that you have listed have the same effective meaning and are
interchangeable, so long as they follow the proper context. Cross-searching
these examples on
[Weblio](https://thesaurus.weblio.jp/content/%E3%81%99%E3%82%8B%E3%81%97%E3%81%AA%E3%81%84),
they are pretty much all listed as synonyms, with some seemingly trivial usage
differences that I do not think will actually dissuade most speakers from
using them interchangeably.

> するかしないか standard colloquial
>
> するしない casual colloquial
>
> * * *
>
> するかどうか standard (spoken or written)
>
> するか否｛いな｝か formal (usually written); somewhat pedantic

To use as an example some advice once given by Master Yoda:

> 「やる」か、「やらない」かだけだ → OK
>
> 「やる」、「やらない」だけだ → OK
>
> 「やる」かどうかだけだ → a little strange (not quite casual enough)
>
> 「やる」か否かだけだ → strange (mixing formal with casual)

Finally, 「するのかしないのか、」or 「するのしないの、」 could be used to carry a separate nuance;
one of impatience and frustration; e.g. ‘So, are you going to do it or not!?’.

If someone has another take I will be happy to consider editing.

