Je ne trouve plus mon permis dans mon sac.

Because ne ... plus means no longer / not anymore, not just simple negation.

• Je ne trouve pas mon permis = I can't find my license
• Je ne trouve plus mon permis = I can't find my license anymore / no longer

So plus adds the idea that the speaker used to be able to find it or had it before, but now cannot.

In this sentence, plus means anymore or no longer.

It is part of the negative structure ne ... plus.

Examples:

• Je ne fume plus. = I don't smoke anymore.
• Il n'habite plus ici. = He doesn't live here anymore.

So here, Je ne trouve plus mon permis means the speaker cannot find the license now, and implies a change from before.

In standard French, negative expressions usually have two parts:

• ne before the verb
• another negative word after the verb, such as pas, plus, jamais, rien, etc.

So:

• Je ne trouve plus...

This is the normal written form.

In everyday spoken French, many speakers drop ne:

• Je trouve plus mon permis dans mon sac.

That is very common in conversation, but learners should know that the full standard form is still Je ne trouve plus...

In simple French negatives, the negative words usually go around the conjugated verb:

• Je ne trouve plus
• Il ne mange pas
• Nous ne savons jamais

So ne comes before trouve, and plus comes after it.

That is just the normal word order for French negation.

Trouver means to find, not to look for.

That is an important difference for English speakers.

• chercher = to look for
• trouver = to find

So:

• Je cherche mon permis. = I am looking for my license.
• Je trouve mon permis. = I find my license.
• Je ne trouve plus mon permis. = I can’t find my license anymore.

English often uses find in negative sentences where French also uses trouver, so this sentence is completely natural.

Here, permis most likely means driver’s license or license.

In everyday French, le permis often means le permis de conduire.

So:

• J'ai mon permis. often means I have my driver’s license.

The word permis can also mean permit in other contexts, but in a sentence about something in a bag, license is the most natural interpretation.

Because French uses a possessive adjective here:

• mon permis = my license
• mon sac = my bag

Just like in English, you normally do not say the my bag. French works the same way here: the possessive replaces the article.

So:

• mon, ton, son, etc. already do the job.

Because the speaker is talking about two different things that belong to them:

• mon permis = my license
• mon sac = my bag

French repeats the possessive adjective before each noun. English usually does too.

So the sentence is literally structured like:

• I no longer find my license in my bag.

You cannot normally use mon once and let it cover both nouns in this kind of sentence.

Dans means in / inside.

So:

• dans mon sac = in my bag

This is the natural preposition if the license is supposed to be inside the bag.

Other prepositions would change the meaning:

• sur mon sac = on my bag
• sous mon sac = under my bag
• près de mon sac = near my bag

Because it tells you where the speaker cannot find the license, and French commonly puts that kind of place phrase after the main verb and object.

So the structure is:

• Je = subject
• ne trouve plus = negative verb phrase
• mon permis = object
• dans mon sac = place phrase

This order is very natural in French:

• Je ne vois pas mes clés sur la table.
• Il ne retrouve plus son téléphone dans sa poche.

Yes, absolutely.

That version is more explicit:

• mon permis de conduire = my driver’s license

Using just mon permis is shorter and very common when the meaning is obvious from context.

So both are correct:

• Je ne trouve plus mon permis dans mon sac.
• Je ne trouve plus mon permis de conduire dans mon sac.

Not always.

In ne ... plus meaning not anymore, the s is often not pronounced:

• plus ≈ plu

But when plus means more, the s is often pronounced:

• plus ≈ pluss

So:

• Je ne trouve plus mon permis → usually plu
• Je veux plus de temps = I want more time → usually pluss

In real speech, pronunciation can vary somewhat, but this is a very useful general rule.

Yes, but in casual speech they would often drop ne:

• standard/written: Je ne trouve plus mon permis dans mon sac.
• everyday spoken: Je trouve plus mon permis dans mon sac.

Both mean the same thing here.

Dropping ne is extremely common in spoken French, but learners should still understand and be able to use the full form.

In natural English, the best translation is usually I can't find my license in my bag anymore.

French often uses ne pas trouver / ne plus trouver where English prefers can't find.

So while the literal structure is closer to I no longer find my license in my bag, the natural meaning is:

• I can't find my license in my bag anymore
• I can no longer find my license in my bag

Because it is the je form of the verb trouver in the present tense.

Present tense of trouver:

• je trouve
• tu trouves
• il/elle/on trouve
• nous trouvons
• vous trouvez
• ils/elles trouvent

So Je trouve means I find, and in the negative:

• Je ne trouve plus...

The -e ending is the normal ending for many -er verbs with je in the present tense.