Proto-Slavic *byvati

→ Bulgarian бивам (inherited)

→ Old Church Slavonic бꙑвати (inherited)

→ Old Church Slavonic прѣбꙑвати (inherited)

→ Polish bywać (inherited)

→ Russian бывать (inherited)

→ Serbo-Croatian bivati (derived)

→ Serbo-Croatian бивати (derived)

→ Ukrainian бувати (inherited)