Learn Polish: Wczoraj napisaliśmy parę ciekawych komentarzy. - Yesterday we wrote a few interesting comments.

The word parę (a few/a couple) is an indefinite numeral. In Polish, indefinite numerals like parę, kilka, and kilkanaście force the noun and adjective that follow them into the Genitive plural. Even though the phrase is the direct object, the numeral takes over and demands the Genitive case for ciekawych komentarzy.

Komentarz is a masculine noun. Why doesn't its Genitive plural end in -ów?

Masculine nouns usually take -ów in the Genitive plural, but there is an exception for nouns ending in soft or historically soft consonants. Because komentarz ends in -rz, it takes the ending -y instead.

Is parę related to the noun para (a pair)?

Yes! Para literally means a pair or a couple (like a married couple). However, when used as an indefinite numeral meaning 'a few' or 'a couple of', it takes the fixed form parę in the Nominative and Accusative cases.

What does the ending of napisaliśmy tell us about the group of people writing?

The -liśmy ending shows that 'we' is a masculine personal group, meaning at least one male is included. If the group consisted entirely of women, the verb would be napisałyśmy.