MW messages/MediaWiki:I18n-form-language-after

(This one may not be needed for all languages.) Combined with this and this page. It should look like this:

Translate from: [LANGUAGE] To: [LANGUAGE]  

en

/

be

 перакласці

de

 übersetzen

ja

に

ru

 перевести

uk

 перекласти

перевести