to tell someone an idea for their opinion, or to pass a place while moving
to ask someone quickly what they think, or to go past something
2 meanings, ordered from most common to least. Color-coded by CEFR level.
to tell someone an idea, plan, or information in order to get their opinion or approval
"Can I run this proposal by you before I send it?"
Let me run something by you.
— Common movie/TV dialogue phrase; exact source not reliably recalled
to pass a place or person while moving quickly
"I ran by your office this morning, but you were out."
to run past something or someone
to ask someone quickly what they think, or to go past something
The idea/approval sense is very common in spoken English: 'Can I run this by you?' The physical sense is less common.
Natural word combinations native speakers use most often.
The five tense forms you'll use most often.
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