Breakdown of Begrijpt u het door de onderzoeker berekende percentage?
u
you (formal)
begrijpen
to understand
door
by (agent in a passive sentence)
berekenen
to calculate
de onderzoeker
the researcher
het percentage
the percentage
Questions & Answers about Begrijpt u het door de onderzoeker berekende percentage?
How does the "trek harmonica" (accordion) structure work in this sentence?
In Dutch, you can take a simple noun phrase like het berekende percentage (the calculated percentage) and stretch it out to include more details. All the extra information—in this case, door de onderzoeker (by the researcher)—is placed right between the article (het) and the participle (berekende). English usually puts this modifying information after the noun.
Why does the past participle berekend get an -e at the end here?
When a past participle is used as an adjective directly in front of a noun, it follows standard adjective inflection rules. Percentage is a het word. Because it is preceded by the definite article het, the modifying participle (berekend) must get an -e at the end, becoming berekende.
Could I phrase this differently and put the extra information after the noun, like in English?
You cannot simply place the bare participle phrase after the noun like in English. To avoid the accordion structure, you must build a full relative clause instead: Begrijpt u het percentage dat door de onderzoeker is berekend? (Do you understand the percentage that was calculated by the researcher?). Both versions are correct, though the accordion style is highly typical for formal writing and news.
Why is door used here to mean "by"? Doesn't it usually mean "through"?
While door does mean "through" for physical movement, it is also the standard preposition for indicating the agent (the "doer") in a passive construction. Since this extended phrase implies a passive action (the percentage was calculated by the researcher), door is the correct preposition to use here.
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