Se continui a lasciare tutto sul tavolo, finirai per non trovare più le chiavi.

In Italian, when se means if in a real, likely condition, the verb in the if-clause is usually in the present indicative, not the future.

So Italian says:

• Se continui... finirai...
• literally: If you keep going on... you will end up...

English often uses the present after if too:

• If you keep leaving things on the table, you’ll end up not finding your keys anymore.

So the pattern here is:

• se + present
• main clause: often future

This is a very common structure in Italian.

Continuare a + infinitive means to keep doing something or to continue to do something.

So:

• continui a lasciare = you keep leaving = you continue to leave

Examples:

• Continuo a studiare. = I keep studying.
• Continua a parlare. = He/She keeps talking.

The a is required with continuare in this structure:

• continuare a fare
• continuare a dire
• continuare a lasciare

Because after continui a, Italian uses the infinitive.

So the structure is:

• continui = conjugated verb
• a lasciare = infinitive phrase

This is similar to English:

• you continue to leave
• you keep leaving

Other examples:

• Comincio a capire. = I’m starting to understand.
• Impara a guidare. = He/She learns to drive.

So lasciare stays in the infinitive because it depends on continui a.

Yes, tutto literally means everything, but in this sentence it is probably being used a little loosely to mean all your stuff or everything you’re handling.

So:

• lasciare tutto sul tavolo can mean
• to leave everything on the table
• to keep putting all your things on the table

In everyday speech, tutto is often broader and more natural than translating it word-for-word every time.

Because sul is the contracted form of:

• su + il = sul

This is very common in Italian. Prepositions often combine with definite articles:

• a + il = al
• di + il = del
• in + il = nel
• su + il = sul

So:

• sul tavolo = on the table

Other examples:

• sul libro = on the book
• sul treno = on the train

Finire per + infinitive means to end up doing something.

So:

• finirai per non trovare più le chiavi = you will end up not finding your keys anymore = you’ll eventually stop being able to find your keys

This structure often suggests a result that happens gradually or as a consequence of a habit.

Compare:

• Non troverai più le chiavi. = You won’t find the keys anymore.

  • more direct

• Finirai per non trovare più le chiavi. = You’ll end up not finding the keys anymore.

  • emphasizes the consequence of the repeated behavior

So finirai per adds the idea of eventual result.

Here più means anymore / no longer, not more in the usual comparative sense.

So:

• non trovare più = to not find anymore = to no longer find

Examples:

• Non voglio più uscire. = I don’t want to go out anymore.
• Non lo vedo più. = I don’t see him anymore.
• Non funziona più. = It doesn’t work anymore.

In affirmative sentences, più often means more:

• Voglio più tempo. = I want more time.

But with non, it often means anymore / no longer.

Because più modifies the verbal idea trovare here, not the noun le chiavi.

So:

• non trovare più le chiavi means
• to no longer find the keys

The word order is very natural in Italian:

• non + infinitive + più + object

Example:

• non vedere più Luca = to not see Luca anymore
• non usare più questa app = to not use this app anymore

If you move più, the sentence may sound unnatural or change emphasis.

Italian very often uses the definite article where English might not.

So:

• le chiavi = the keys

In context, this usually means the keys we both know you mean, often your keys.

Italian often prefers:

• Ho preso il telefono. = I picked up my phone / the phone.
• Mi lavo le mani. = I wash my hands.

So le chiavi is perfectly normal even though English might simply say your keys depending on context.

It is built into the verb endings.

• continui = you continue / you keep
• finirai = you will end up

Italian usually drops subject pronouns when they are clear from the verb form.

So the full version could be:

• Se tu continui a lasciare tutto sul tavolo, tu finirai per non trovare più le chiavi.

But that sounds heavier and less natural unless you want emphasis.

Normally Italian just says:

• Se continui..., finirai...

Because the sentence describes a future consequence of a present habit.

Structure:

• Se continui... = If you keep doing that...
• finirai... = you will end up...

So the meaning is:

• your current behavior will lead to a future result

This is a very common pattern in Italian:

• Se studi, passerai l’esame. = If you study, you’ll pass the exam.
• Se esci adesso, arriverai tardi. = If you leave now, you’ll arrive late.

Yes, very much so.

It has the tone of a practical warning or mild reproach:

• If you keep leaving everything on the table, you’ll end up not finding your keys anymore.

The speaker is saying:

1. you have a bad habit,
2. that habit has consequences,
3. those consequences will eventually become a problem.

The use of finirai per strengthens that warning-like tone, because it suggests an inevitable result.

Yes. A few natural alternatives are:

• Se continui a lasciare tutto sul tavolo, non troverai più le chiavi.

  • more direct

• Se continui a lasciare le cose sul tavolo, finirai per non trovare più le chiavi.

  • le cose may sound a bit more natural than tutto in some contexts

• Se lasci sempre tutto sul tavolo, finirai per non trovare più le chiavi.

  • uses sempre instead of continuare a

Each version is slightly different in nuance, but the original sentence is perfectly natural and idiomatic.