Why wrong: Furniture, like information, is a non-count or mass noun. Mass nouns are used for masses like sand that are too big to count their individual parts. That means that they can’t be plural or take an indefinite article (a or an means one, which is a number). In French, mass nouns are signified by du, de la or de l’. For more information, click here.
Correct it: With mass nouns, don’t use indefinite articles (a furniture) or try to make them plural (furnitures). “We need new furniture for the living room.” Remember that furniture doesn’t mean des fournitures. For that, we would usually say supplies.
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