Breakdown of Der erste Tag im Sommer ist schön.
sein
to be
in
in
dem
the; (masculine or neuter, dative)
der Tag
the day
schön
beautiful
der Sommer
the summer
erste
first
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Questions & Answers about Der erste Tag im Sommer ist schön.
Why is der used before erste Tag?
Because Tag (day) is a masculine noun and this phrase is the subject of the sentence, so it takes the nominative case. The definite article for masculine nominative singular is der.
Why does erste end with -e?
After a definite article in the nominative masculine singular, adjectives follow the weak declension, which uses -e as the ending. Hence der erste Tag.
What case is used in im Sommer, and why?
It’s the dative case because the preposition in here indicates a static location or time (when something happens). Since Sommer is masculine, in dem Sommer becomes the contraction im Sommer.
Why is im a contraction, and when should I use it?
im is short for in dem. You use this contraction whenever in governs the dative and is followed by a masculine or neuter noun (e.g., im Sommer, im Park, im Auto).
Why doesn’t the adjective schön take an ending?
Schön is a predicative adjective because it follows the linking verb ist (to be). Predicative adjectives in German remain uninflected, so you simply say ist schön.
Why are Tag and Sommer capitalized?
In German, all nouns are capitalized regardless of their position in the sentence. Both Tag and Sommer are nouns, so they always start with a capital letter.
Could I say der erste Sommertag ist schön instead, and is there any nuance?
Yes, der erste Sommertag is a valid compound noun (Sommer + Tag) meaning “first summer day.” Both sentences convey a similar idea, but der erste Tag im Sommer emphasizes that it’s the first day within the summer period, whereas der erste Sommertag treats “summer day” as one concept.