Breakdown of La membrane est parsemée de particules.
être
to be
de
of / from / any (in negative sentences) / about (concerning)
la particule
the particle
la membrane
the membrane
parsemer
to dot
Questions & Answers about La membrane est parsemée de particules.
Why is the agent introduced by de instead of par in this passive sentence?
In the passive voice, par is typically used for specific, active physical actions. However, verbs expressing a state, condition, or a static result—like being covered, filled, or dotted—use de. Here, the particles aren't actively running around dotting the membrane; they are the dots themselves, describing a static condition.
Could I use avec since the English translation is "with particles"?
Why is it just de particules and not des particules?
In this construction, de acts as the preposition introducing the passive agent. When talking about an unspecific, plural amount (particles in general), the indefinite plural article des is omitted after the preposition de. If you wrote des particules, it would be interpreted as the contraction of de + les, changing the meaning to "dotted with the specific particles".
Why is there an extra e at the end of parsemée?
Because this is the passive voice, which is always formed using the helping verb être. Whenever a past participle is used with être, it must agree in gender and number with the subject. Since la membrane is feminine and singular, we add an e to the past participle parsemé.
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