Polish is a member of the West Slavic group of the Slavic sub-family of the Indo-European family of languages. In pronunciation the stress is normally placed on the penultimate syllable of a word. A distinctive feature is the preservation in spoken Polish of the nasal vowels which are no longer found in the other modern Slavic tongues. Nouns, pronouns, and adjectives have seven cases (nominative, genitive, dative, accusative, vocative, instrumental, and locative). The verb is inflected to indicate gender as well as person and number, and can do so without the use of the personal pronoun. There are three genders (masculine, feminine, and neuter) and two numbers (singular and plural). Polish grammar and punctuation have plenty of rules and twice as many exceptions to them.
PWSZ in Konin has run courses of Polish for foreign students.