The particle-либо is used more often in writing, while-нибудь is used more often in spoken speech. Apart from this, they are largely synonymous, with their use subject to the stylistic and idiosyncratic preferences of individual speakers.
| nominative | кто́-либо któ-libo |
|---|---|
| genitive | кого́-либо kovó-libo |
| dative | кому́-либо komú-libo |
| accusative | кого́-либо kovó-libo |
| instrumental | ке́м-либо kém-libo |
| prepositional | ко́м-либо kóm-libo |