Questions & Answers about Te kolejki są bardzo długie.
Why do we use Te here instead of Ci for 'These'?
In Polish, plural nouns are split into two groups: masculine-personal (groups of people including at least one man) and non-masculine-personal (everything else: women, animals, objects). Since kolejka (queue/line) is an object, it belongs to the non-masculine-personal group. Therefore, we use te for 'these' instead of the masculine-personal ci.
Wait, isn't kolejki the singular genitive form of kolejka?
Good eye! It is, but kolejki is also the plural Nominative form used here. Usually, feminine nouns ending in -a change to -y in the plural (like kobieta becoming kobiety). However, Polish spelling rules dictate that we cannot write -ky or -gy. Since kolejka has a 'k' before the ending, it takes an -i, making it kolejki.
Why is the adjective długie instead of długi?
Adjectives must match the noun they describe. Because kolejki is plural and non-masculine-personal, the adjective must take the matching plural form. For adjectives describing this group, the plural ending is usually -e, turning the singular masculine długi (long) into the plural długie.
I usually think of trains when I see a word like kolejki. Can it mean both?