How to use "whereupon"

What Does "whereupon" Mean?

• Grammatical function: "Whereupon" is a relative adverb used as a connective. It expresses a relationship of consequence and temporal succession, meaning "immediately after which" or "as a result of which."
• Typical sentence position: It is most commonly found in the medial position to link two clauses, though it can occasionally appear in the initial position of a new sentence to provide a dramatic or formal transition.
• Register: This term is decidedly formal. It is frequently used in literature, legal writing, historical accounts, and high-quality journalism, but it is rarely heard in casual conversation.

How to Use It

• Syntactic patterns: It typically functions as a subordinating conjunction. It is preceded by a clause describing an action or event and followed by a clause describing the immediate reaction or result.
• Punctuation rules: When used medially, it is almost always preceded by a comma. If it starts a new sentence, it is followed by the subject of the clause without a comma immediately after the word itself.
• Grammatical flexibility: While it can start a sentence for stylistic emphasis, it cannot be moved to the end of a clause. It is a fixed connective and cannot be negated (e.g., you cannot say "not whereupon").
• What sounds unnatural: Using "whereupon" to describe a long delay between events sounds incorrect; it implies an immediate or direct response. It also sounds jarring in text messages or informal dialogue.

Real-World Examples

These examples are sourced from whereupon on Ludwig.guru.

"Moody's believes that the downside risks warrant putting Spain's rating under review for downgrade," Muehlbronner pronounced with her hand on the lever – whereupon the euro and the stock market both fell." — theguardian.com

"The record was achieved on a visit to Prague, when she arrived early at the president's palace, whereupon the guard of honour snapped to attention and the band struck up the national anthems." — theguardian.com

"Rather than pushing her away, he brushed his diagnosis off: "I mentioned how sorry I had been to hear of his stay in hospital, whereupon he wrinkled his nose and said nothing," Jane wrote." — theguardian.com

"A hastily assembled United Nations force, which was led by America, managed to drive the North Koreans back almost to the border with China, whereupon the Chinese entered the war." — economist.com

"The House of Representatives must first pass a motion of impeachment, whereupon the Senate would sit as a glorified jury in a trial presided over by the chief justice." — economist.com

Examples sourced from https://ludwig.guru/s/whereupon

Similar Phrases and Alternatives

Phrase	Context
after which	The closest neutral equivalent; suitable for most writing styles.
following which	Slightly more formal; emphasizes the temporal order of events.
at which point	Focuses on the specific moment an action triggered a response.
and then	The standard informal choice for spoken English and casual storytelling.
subsequently	Formal; indicates that something happened later, but without the "immediate" nuance.

Common Mistakes

• Confusion with Location: Learners sometimes confuse "whereupon" with "whereabouts." Remember that "whereupon" refers to time and consequence, while "whereabouts" refers to physical location.
• Informal Overuse: Using it in casual settings (e.g., "I went to the store, whereupon I bought milk") sounds overly dramatic or archaic. Use "and then" instead.
• Missing Punctuation: Forgetting the comma before "whereupon" in the middle of a sentence can lead to a run-on feel, as it functions as a subordinating conjunction.

Quick-Reference Summary

Expression	Function	Register	Typical Position
whereupon	Immediate consequence/sequence	Formal	Medial (after a comma)

FAQs

Can whereupon be used to start a sentence

Yes, whereupon can appear in the sentence-initial position to link back to the entirety of the previous sentence. In this context, it acts as a conjunctive adverb to signal a dramatic or significant consequence that follows immediately from the prior statement.

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How does whereupon differ from and then

While both terms describe sequence, whereupon is strictly formal and implies a direct causal link between two events. In contrast, "and then" is informal and simply lists events in order without necessarily suggesting that the first event triggered the second.

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Why is it incorrect to use whereupon when describing a location

Learners often confuse whereupon with whereabouts, but they serve different functions. You should use whereupon for temporal sequences, whereas "whereabouts" is the correct choice for discussing a person's or object's location.