Portuguese Phrase
Preciso de um limpa-pisos.
Meaning
The speaker is stating that they need a floor‑cleaning product. It is a straightforward request that can be used in a store, at home, or when asking a friend for help.
When to use
Use this sentence when you are at a supermarket, hardware store, or any place that sells cleaning supplies and you want to ask for a floor cleaner. It also works in casual conversation when you’re telling someone you need to buy one.
✦Grammar Breakdown
Precisodeumlimpa-pisos
Preciso (verbo precisar)
‘Preciso’ is the first‑person singular present of ‘precisar’, which always takes the preposition ‘de’ when followed by a noun.
Preposição ‘de’
The preposition links the verb ‘precisar’ to the thing needed; omitting it (e.g., *Preciso um limpa‑pisos*) is a common error.
Limpa‑pisos (substantivo composto)
A hyphenated compound noun meaning ‘floor cleaner’. It can also appear as the periphrastic form ‘limpador de pisos’.
Artigo indefinido ‘um’
Used because you are referring to an unspecified floor cleaner; it agrees in gender (masculine) with ‘limpa‑pisos’.
🗨In Conversation
Preciso de um limpa-pisos.
I need a floor cleaner.
Temos várias marcas. Você prefere alguma em especial?
We have several brands. Do you prefer any in particular?
✕Common Mistakes
Preciso um limpa-pisos.
The verb ‘precisar’ always requires the preposition ‘de’ before the noun.
Preciso de um limpa pisos.
When used as a noun, the compound should be hyphenated: ‘limpa‑pisos’. Without the hyphen it can be misread as a verb phrase.
Preciso de um limpa-piso.
‘Limpa‑piso’ (singular) is not idiomatic; the product is referred to in the plural form ‘limpa‑pisos’.
↔Alternatives
Preciso de um limpador de pisos.
I need a floor cleaner.
Quero um limpa-pisos.
I want a floor cleaner.
Preciso de um produto para limpar o piso.
I need a product to clean the floor.
Cultural Tip
In Brazil, ‘limpa‑pisos’ is the most common term for a liquid or spray floor cleaner, while ‘detergente para piso’ is also heard in some regions. When speaking to a store clerk, it’s polite to add ‘por favor’ or use the formal ‘você’ form if you want extra courtesy.

