J’utilise une éponge humide pour nettoyer le lait renversé sur la table.

In French, je becomes j’ before a vowel sound, to make pronunciation smoother. This is called elision.

• je + utilise → j’utilise
• You see this a lot: j’aime, j’habite, j’écoute

So J’utilise is simply the normal form before utilise.

Éponge is a feminine noun, so it takes the feminine singular article une.

• un = a/an for masculine nouns
• une = a/an for feminine nouns

So:

• une éponge = a sponge

You usually have to learn the gender of each noun along with the noun itself.

In French, many adjectives come after the noun, unlike in English.

• English: a damp sponge
• French: une éponge humide

This is a very normal adjective position in French. Some adjectives come before the noun, but many descriptive ones—like humide—usually come after.

It can mean humid, damp, or moist, depending on context. In this sentence, damp or wet is the most natural translation for une éponge humide.

So it suggests a sponge that already has some water in it, probably to help with cleaning.

Pour often means to or in order to when it introduces a purpose.

So:

• pour nettoyer = to clean / in order to clean

French commonly uses pour + infinitive to explain why someone is doing something.

Examples:

• Je viens pour aider. = I’m coming to help.
• Elle ouvre la fenêtre pour aérer. = She opens the window to air the room out.

Renversé means spilled here. It describes the milk.

• le lait = the milk
• le lait renversé = the spilled milk

So renversé is acting like an adjective, even though it comes from the verb renverser.

It agrees with lait, which is masculine singular, so the form is renversé.

This is a very common question.

• du lait usually means some milk
• le lait can mean the milk or milk as a known/specific thing

Here, the milk is specific: it is the milk that was spilled on the table. Because it is identified by renversé sur la table, French uses le lait.

So:

• Je bois du lait. = I drink milk / some milk.
• Je nettoie le lait renversé. = I’m cleaning up the spilled milk.

Yes, in this sentence renversé works very naturally for spilled.

The verb renverser can mean things like:

• to knock over
• to tip over
• to spill

So le lait renversé is milk that has been knocked over or spilled.

French can use other words in some contexts, but renversé is perfectly normal here.

In this sentence, sur la table most naturally describes where the milk was spilled.

So the idea is:

• le lait renversé sur la table = the milk spilled on the table

It does not usually mean that the sponge is on the table, although of course that may also be true in real life. Grammatically, it most naturally goes with le lait renversé.

French often does not need a separate particle like up.

In English, we say:

• clean
• clean up

French usually just uses nettoyer for both ideas, depending on context.

So:

• nettoyer le lait renversé naturally means clean up the spilled milk

French verbs often do the full job without an added word like up, out, or off.

Yes, J’utilise is in the present tense.

Like the French present tense in general, it can mean either:

• I use
• I am using

The exact English translation depends on context.

So this sentence could mean:

• I use a damp sponge to clean the spilled milk on the table. or
• I’m using a damp sponge to clean the spilled milk on the table.

French often leaves that distinction to context.

In humide, the h is silent. This is very important in French.

So humide is pronounced roughly like u-meed.

Because the h is silent, it behaves like a vowel sound at the beginning. That means French speakers move smoothly from the previous word into it.

For example:

• une éponge humide

Also, because the h is silent, you will see normal elision and linking behavior with words like this in other contexts:

• l’humidité
• d’habitude

Yes, but it changes the structure a little.

• J’utilise une éponge humide pour nettoyer... = I use a damp sponge to clean...
• Je nettoie ... avec une éponge humide. = I clean ... with a damp sponge.

Both are natural. The first focuses a little more on using the sponge; the second focuses more directly on cleaning.

So your original sentence is completely correct, but avec une éponge humide would also be a normal way to express the tool being used.