Indeed so. Polish has 11 conjugation classes plus some classes has subclasses. Here's a link to the first class with „czytać” (to read) as an example: https://pl.wiktionary.org/wiki/Aneks:J%C4%99zyk_polski_-_koniugacja_I
Other classes are linked at the bottom.
In practice, Polish people never learn about these classes (unless they are linguists or something) – there's simply too many and it's impractical to them. But if you really want to know, good luck.