Il pesce è già cotto, ma vorrei gratinare le patate ancora per cinque minuti.

Italian uses definite articles much more often than English does.

So:

• il pesce = the fish
• le patate = the potatoes

In English, you might sometimes say Fish is already cooked, but in Italian it is more natural to say Il pesce è già cotto.

The article agrees with the noun:

• il = masculine singular
• le = feminine plural

Since pesce is masculine singular and patate is feminine plural, the sentence uses il and le.

Cotto is the past participle of cuocere (to cook), but it is also very commonly used as an adjective meaning:

• cooked
• done
• ready from cooking

So Il pesce è già cotto literally means The fish is already cooked.

This is a very natural way to describe food that has finished cooking. In context, cotto usually means fully cooked, not just heated.

Because cotto agrees with il pesce.

Agreement works like this:

• masculine singular → cotto
• feminine singular → cotta
• masculine plural → cotti
• feminine plural → cotte

Here, pesce is treated as masculine singular, so you need cotto.

Examples:

• La carne è già cotta.
• I pesci sono già cotti.
• Le patate sono già cotte.

Già means already.

In this sentence:

• è già cotto = is already cooked

Its placement is very natural in Italian. It often comes:

• after the verb essere
• before the adjective or participle it modifies

So:

• Il pesce è già cotto is the normal order.

You may hear già in other positions in other sentences, but here this is the most standard and natural one.

Vorrei is the conditional form of volere and means I would like.

So:

• voglio gratinare = I want to gratinate / brown
• vorrei gratinare = I would like to gratinate / brown

Using vorrei sounds:

• more polite
• softer
• less direct

That is very common in Italian, especially when expressing a preference or intention in a gentle way.

So this sentence sounds more natural and polite than one with voglio.

Gratinare means to cook something so that the top becomes browned, crisp, or lightly crusted, usually in the oven.

For food like potatoes, it suggests:

• finishing them in the oven
• giving them a golden or crispy top

It does not simply mean to cook in a general sense. It is more specific than that.

So gratinare le patate is something like:

• to brown the potatoes on top
• to gratinate the potatoes
• to finish the potatoes under heat so they get a crust

In everyday English, learners often understand it better as to brown the potatoes a bit more in the oven.

Because le patate is the direct object of gratinare.

The verb gratinare takes a direct object:

• gratinare le patate
• gratinare la pasta
• gratinare le verdure

So no preposition is needed.

A native English speaker may wonder about this because English often uses different structures, but in Italian many verbs directly take the thing being acted on.

Here ancora means for a bit longer / some more / still.

So:

• ancora per cinque minuti = for another five minutes

That whole part tells you the extra duration.

It implies that the potatoes are already cooking, and the speaker wants to continue cooking them a little longer.

Very often, English speakers can think of it as:

• I’d like to leave the potatoes in for another five minutes

Yes. Per altri cinque minuti is very natural and often very clear.

Compare:

• ancora per cinque minuti
• per altri cinque minuti

Both mean roughly for another five minutes.

A small nuance:

• ancora per cinque minuti emphasizes continuation a bit more
• per altri cinque minuti emphasizes the additional amount of time very clearly

Both are good Italian.

Because ancora modifies the idea of continuing the action.

So the structure is:

• gratinare le patate ancora per cinque minuti

This is a very normal word order in Italian. It keeps the time expression together:

• per cinque minuti

You could sometimes hear slightly different orders in conversation, but this version is very standard and easy to understand.

Yes. Ma is the normal word for but.

It introduces a contrast:

• the fish is already done
• the potatoes need a little more time

So the sentence sets up a contrast between two cooking situations:

• Il pesce è già cotto
• ma vorrei gratinare le patate ancora per cinque minuti

That is exactly the kind of contrast ma commonly expresses.

Yes, but the nuance is slightly different.

• Il pesce è già cotto = the fish is already cooked
• Il pesce è già pronto = the fish is already ready

Pronto is broader. It means ready, not specifically cooked. In many cooking contexts, though, it can sound very natural.

If you want to focus specifically on the cooking state, cotto is better. If you want to focus on overall readiness to serve, pronto can work well too.

Yes, it is natural Italian.

A native speaker might also say:

• Il pesce è già cotto, ma vorrei lasciare le patate in forno ancora per cinque minuti.
• Il pesce è già pronto, ma le patate le gratinerei ancora per cinque minuti.
• Il pesce è già cotto, ma farei gratinare ancora le patate per cinque minuti.

But your original sentence is perfectly good and natural.

It sounds like someone checking food in the oven and deciding that one item is ready while the other needs a little more time.

Vorrei is pronounced roughly like vor-RAY.

A few helpful pronunciation notes:

• the rr is rolled or tapped
• ei here sounds like ay
• the stress falls on the last part: vor-RÈI

Other useful pronunciation notes from the sentence:

• già sounds like jah
• gratinare is roughly gra-tee-NAR-eh
• patate is roughly pa-TA-te

If you are aiming for natural rhythm, the sentence flows like this:

Il PÈsce è già CÒTto, ma vorRÈI gratiNÀre le paTÀte anCÒra per CÌnque miNÙti.