Questions & Answers about Ich habe das Hotel für Freitag reserviert.
How does the preposition für work with time in this sentence?
In this lesson, you are learning that für is used to talk about a planned time span or a future arrangement. It translates to "for" and always forces the following noun into the Accusative case.
Since für takes the Accusative case, why is there no article before Freitag?
When naming a day of the week to make plans (like booking something for a specific day), Germans usually drop the article. You just say für Freitag, which mirrors English exactly: "for Friday", rather than "for the Friday".
Why doesn't the past participle reserviert start with ge-?
Normally, past participles in the spoken past tense (Perfekt) start with ge-. However, verbs that end in -ieren in their infinitive form (like reservieren, studieren, or fotografieren) are an exception. They never take the ge- prefix; they just end in -t.
Is das Hotel affected by the preposition für?
No, für only affects the noun directly following it (Freitag). das Hotel is the direct object of the action habe ... reserviert (it is the thing being reserved). It is in the Accusative case, and because Hotel is a neuter noun, the article stays das.