Paul renomme le sous-dossier.

Renomme is the present indicative, third-person singular form of renommer.

It matches the subject Paul, which is also third-person singular. So Paul renomme can mean either Paul renames or Paul is renaming, depending on context.

Because here renomme is a verb form, not an adjective or past participle.

• renomme = present-tense verb form of renommer
• renommé / renommée = usually renowned or the past participle in other contexts

So in this sentence, Paul renomme... is correct without an accent.

Le is the definite article, so it points to a specific subfolder: the subfolder.

If you said un sous-dossier, that would mean a subfolder, with a less specific sense.

So the sentence is talking about a particular subfolder, not just any one.

French uses l' before a vowel sound or a mute h.

But sous-dossier starts with the consonant sound s, so there is no elision. That is why it stays le sous-dossier, not l'sous-dossier.

Because the main noun is dossier, and dossier is masculine.

The prefix sous- does not change the gender. So:

• un dossier
• un sous-dossier

That is why the sentence uses le sous-dossier.

Sous- means sub-, under-, or lower-level.

So sous-dossier literally means something like sub-folder.

The hyphen is normal in many French compound words built with prefixes like sous-. French spelling often keeps that hyphen in words such as:

• sous-sol
• sous-titre
• sous-dossier

Yes. The structure is very straightforward:

• Paul = subject
• renomme = verb
• le sous-dossier = direct object

So it follows the basic subject + verb + object pattern, just like English.

Yes. French present tense often covers both ideas.

So Paul renomme le sous-dossier could mean:

• Paul renames the subfolder
• Paul is renaming the subfolder

Context usually tells you which one is intended.

A simple English-friendly approximation is ruh-nomm.

More carefully:

• Paul ≈ pohl
• renomme ≈ ruh-nomm
• le sous-dossier ≈ luh soo-doh-syay

A more French-like pronunciation would be approximately:

• Paul /pɔl/
• renomme /ʁə.nɔm/
• le sous-dossier /lə su.dɔ.sje/

The r in French is not like the English r.

No. Renommer is a general verb meaning to rename.

It can be used for many things, including:

• files
• folders
• streets
• places
• categories

In this sentence, it is being used in a computer-related context, where sous-dossier means subfolder.

Because it is built from nommer, which means to name.

So:

• nommer = to name
• renommer = to rename

The double m is part of the normal spelling of that verb family, and it stays in forms like:

• je renomme
• tu renommes
• il/elle/on renomme

So renomme with mm is exactly what you should expect.