Der Tee macht mich an kalten Wintertagen glücklich.

Tea makes me happy on cold winter days.

Breakdown of Der Tee macht mich an kalten Wintertagen glücklich.

• machen: to make
• kalt: cold
• mich: me
• an: on
• glücklich: happy
• der Tee: the tea
• der Wintertag: the winter day

Questions & Answers about Der Tee macht mich an kalten Wintertagen glücklich.

Why is mich in the accusative case here, not mir?

Because German verbs that “make” someone into a certain state (like machen in “to make someone happy”) take a direct object in the accusative. You ask “Wen macht der Tee glücklich?” – “Den Tee macht mich glücklich?” – so it’s mich (accusative), not mir (dative).

What case is used in an kalten Wintertagen, and why do both kalten and Wintertagen end in -en?

The preposition an here is used temporally (“on days”), so it takes the dative. In the dative plural:

• Adjectives in strong declension get -en → kalten
• Nouns in plural normally add -n if they don’t already end in -n → Wintertagen

Why do we use an here? Could we say bei kalten Wintertagen or während kalter Wintertage instead?

• an
  • dative is standard for “on days” (e.g. an Weihnachten, an Feiertagen).
• bei
  • dative expresses “under certain conditions” (e.g. bei Kälte = “in cold (conditions)”).
• während
  • genitive is more formal/literary for “during” (e.g. während kalter Wintertage).
    So an kalten Wintertagen is the most natural for “on cold winter days.”

Why is glücklich placed at the end of the sentence, and can its position change?

German main clauses are V2 (verb-second). The finite verb macht stays in position 2, the subject Der Tee is position 1, and the rest follows. The predicative adjective glücklich is part of the verb’s complement (“make someone happy”) and typically closes the clause. You can, however, move the time phrase for emphasis:

• An kalten Wintertagen macht der Tee mich glücklich.

Why is glücklich uninflected here? Is it an adjective or an adverb?

It’s a predicative adjective (an object complement), not an adverb. Predicative adjectives never take endings (no -e, -en, etc.). They simply describe the object: machen + accusative object + adjective.

Why does mich come before an kalten Wintertagen? Could we swap their order?

Pronouns nearly always precede full noun or prepositional phrases in German. The normal rhythm is Subject – Verb – Pronoun (Object) – Time – Place – Manner – Other Complements. You could say:

• An kalten Wintertagen macht der Tee mich glücklich.
  but you wouldn’t place an kalten Wintertagen between macht and mich because the pronoun “mich” is short and usually comes early.

Why is there a definite article der before Tee? Could we drop it and just say Tee macht mich an kalten Wintertagen glücklich?

In German, mass nouns often take the definite article when speaking generally. Der Tee can mean “tea in general.” You can omit it for a more headline‑style or proverbial feel:

• Tee macht mich an kalten Wintertagen glücklich.
  Both are correct; the version with der sounds slightly more conversational.