Using language switching for menus / categories / items

There are 2 alternatives (you may suggest more to us via the forum):

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Solution 1:
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1. Create a single MENU for all languages
   Inside it set ALL menu items (of both categories and items) to have language: "ALL"
2. Categories:
   • make all your categories have language "ALL"
   • place items of various language inside the same category --regardless-- of their language
3. creation translation associations of items from inside FLEXIContent item form

-- it will work, but the menu titles, and category titles will not be translated

-- you could use Falang to translate the menu items and category titles

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Solution 2:
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1. Create 1 menu for every language that your site has
2. Associate the menu items between their translations in different menus (for your categories and for some of your items)

 -- NOTE: you can still use (and you should use) item associations (of translations), inside the item form, just the menu item will have higher precedence

 -- NOTE: All other items of your site that do not have menu item, will be switchable because they have (translation) associations

ALSO please read this FAQ article:
Solving problems with language switching