vorbeigehen
to pass by
To move past something or someone in a direction without stopping there.
Ich bin gestern an deinem Haus vorbeigegangen, aber du warst nicht da.
I passed by your house yesterday, but you weren't there.

to pass by / pass
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to pass by
To move past something or someone in a direction without stopping there.
Ich bin gestern an deinem Haus vorbeigegangen, aber du warst nicht da.
I passed by your house yesterday, but you weren't there.

'Vorbeigehen' (to pass by / pass) is a separable verb. The prefix 'vorbei-' goes to the end of the main clause. In subordinate clauses and infinitive constructions, the verb stays together.
Ich gehe jeden Morgen an der Bäckerei vorbei.
I pass by the bakery every morning.
The perfect tense of 'vorbeigehen' (to pass by / pass) is always formed with 'sein' (to be), because the base verb 'gehen' (to go) expresses movement. So it is 'ich bin vorbeigegangen' (I passed by / I went by).
Der Sturm ist zum Glück schnell vorbeigegangen.
Fortunately, the storm passed quickly.
The preposition changes the meaning: 'an jemandem/etwas vorbeigehen' (dative) means to move past someone/something. 'Bei jemandem vorbeigehen' (dative) means to visit that person briefly.
Der Bus ist direkt an der Haltestelle vorbeigegangen.
The bus went right past the stop.
In the meaning 'vergehen' (to pass), 'vorbeigehen' is used for abstract things. The subject is then often time, a feeling, an event, or an opportunity.
Die schlimmste Zeit wird auch vorbeigehen.
The worst time will pass too.
In the meaning 'kurz besuchen' (to visit briefly), 'vorbeigehen' is rather colloquial and is often used for spontaneous, unplanned visits.
Sollen wir auf dem Rückweg noch bei Oma vorbeigehen?
Should we drop by Grandma's on the way back?
to happen / pass
'passieren' and 'vorbeigehen' can both describe someone or something moving past a place or person. 'vorbeigehen' is very natural in everyday language when a person walks past someone or something and does not stop. 'passieren' sounds a bit more formal or matter-of-fact and often fits vehicles, borders, checkpoints, or important points. Learners may confuse the words because both express movement past something. In normal everyday situations with people, you often say 'vorbeigehen'; for a specific point that you pass, 'passieren' sounds more precise.

Am Wochenende geht er oft an unserem Haus vorbei.
On weekends, he often walks past our house.
In der Pause passiert die Kundin den Empfang und geht direkt zum Büro.
During the break, the customer passes the reception desk and goes straight to the office.