Questions & Answers about Zawsze śpię w moim wygodnym łóżku.
Why do we use moim wygodnym instead of moje wygodne?
Because of the preposition w (in) describing a location, we must use the Locative case. The noun łóżko (bed) is neuter. In the Locative case, adjectives and possessive words describing a neuter noun take the ending -ym or -im. Therefore, moje becomes moim, and wygodne becomes wygodnym.
Why does wygodnym end in -ym but moim ends in -im?
Both are Locative neuter endings, but the spelling depends on the sound before them. We use -ym after hard consonants (like the n in wygodny). We use -im after soft consonants or vowels, which is why the base word changes to moim.
Why does the noun łóżko change to łóżku here?
This is the Locative case form of the neuter noun łóżko. Normally, neuter nouns ending in -o change to -e in the Locative. However, because łóżko has the consonant k right before the -o, it takes the -u ending instead to make it easier to pronounce.
I don't recognize the verb śpię. What is its basic dictionary form?