
vorhaben
to plan
To have the intention or plan to do something specific.
Was hast du am Wochenende vor?
What are you planning for the weekend?
to plan
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to plan
To have the intention or plan to do something specific.
Was hast du am Wochenende vor?
What are you planning for the weekend?
'Vorhaben' (to plan / to intend) is a separable verb. The prefix 'vor' goes to the end in a main clause. In subordinate clauses and in the infinitive, the verb stays together.
Ich habe am Samstag etwas Schönes vor.
I have something nice planned for Saturday.
You can use 'vorhaben' (to plan / to intend) in two ways: either with a direct object, often 'etwas' (something) or 'nichts' (nothing), or with an infinitive clause with 'zu' to describe a specific action.
Wir haben für die Ferien eine große Reise vor.
We have a big trip planned for the holidays.
The question 'Was hast du vor?' (What are you planning? / What are you up to?) or, politely, 'Was haben Sie vor?' is a very common and natural way to ask about someone's plans, especially for the near future, such as the weekend or the evening.
Was hast du heute Abend vor? Wollen wir ins Kino gehen?
What are you planning tonight? Shall we go to the movies?
The corresponding noun for the verb 'vorhaben' (to plan / to intend) is 'das Vorhaben' (undertaking / plan). It refers to a plan, project, or intention, often in a more formal or larger context.
Der Bau der neuen Brücke ist ein teures Vorhaben.
The construction of the new bridge is an expensive undertaking.
company / undertaking
Das Unternehmen is a noun here and refers to a planned, often challenging action. Vorhaben is a verb and expresses that someone intends to do something. Unternehmen is used for the action itself, while vorhaben is used for a person's plans.

Wir haben vor, im nächsten Jahr durch die Wüste zu reisen.
We plan to travel through the desert next year.
Die Reise durch die Wüste ist ein schwieriges Unternehmen.
The journey through the desert is a difficult undertaking.