Quando avremo oltrepassato la rotonda, potrai accelerare un po’.

Avremo oltrepassato is the future perfect (futuro anteriore). It means something like when we will have passed or, more naturally in English, once we’ve passed.

Italian often uses the future perfect after words like quando when one future action will be completed before another future action happens.

So in this sentence:

• Quando avremo oltrepassato la rotonda = When we have passed the roundabout / Once we’ve passed the roundabout
• potrai accelerare = you will be able to accelerate / you can accelerate

The idea is: first we pass the roundabout, then you accelerate.

English usually prefers the present perfect after when in this kind of sentence, while Italian uses the future perfect.

It is made with:

• the future tense of avere: avrò, avrai, avrà, avremo, avrete, avranno
• plus the past participle: oltrepassato

Here the subject is we, so:

• avremo = we will have
• oltrepassato = passed

Together:

• avremo oltrepassato = we will have passed

This is the standard way to form the future perfect with verbs that take avere.

Potrai accelerare literally means you will be able to accelerate.

Italian often uses potere + infinitive to express permission, possibility, or the right moment to do something. In this sentence, it sounds a bit like:

• then you can accelerate
• then you’ll be able to accelerate

Using accelererai would mean simply you will accelerate, which is more neutral and less about permission or appropriateness.

So:

• potrai accelerare = it will be okay / possible for you to accelerate
• accelererai = you will accelerate

The sentence is giving guidance, not just predicting an action.

Italian usually omits subject pronouns when the verb ending already makes the subject clear.

Here:

• avremo clearly means we will have
• potrai clearly means you will be able to (singular)

So Italian does not need to say:

• Quando noi avremo oltrepassato la rotonda, tu potrai accelerare...

That version is grammatically possible, but it would usually sound unnecessary unless you want emphasis or contrast.

This is very normal in Italian.

Oltrepassare means to go beyond, to pass, or to get past something.

In a driving context, oltrepassare la rotonda means passing the roundabout so that it is behind you and you are no longer dealing with it.

It is a fairly standard verb, but depending on context, Italians might also use verbs like:

• superare
• passare
• oltrepassare

Here oltrepassare gives a clear sense of moving beyond that point.

Yes. Rotonda refers to a circular road junction. In British English, roundabout is the most natural translation. In American English, people may also say traffic circle or sometimes roundabout.

So all of these can fit depending on the variety of English:

• roundabout
• traffic circle

For learners of Italian, the important point is that la rotonda is the circular intersection.

Un po’ means a little, a bit, or slightly.

So:

• accelerare un po’ = to accelerate a little / speed up a bit

The apostrophe is there because po’ is a shortened form of poco.

So:

• poco → po’

That is why it is written po’, not po.

The comma separates the time clause from the main clause:

• Quando avremo oltrepassato la rotonda,
• potrai accelerare un po’.

This is similar to English when a clause comes first:

• When we’ve passed the roundabout, you can accelerate a little.

The comma helps mark the pause and makes the structure easier to read.

Yes. Italian can also say:

• Potrai accelerare un po’ quando avremo oltrepassato la rotonda.

This means the same thing.

The original version starts with the time condition, which gives it a natural instructional flow: first the situation, then the result.

Both are correct, but the original sounds very natural in spoken instructions.

Not always, but it is very common when you want to show that one future action will be completed before another future action.

Compare:

• Quando arriverai, mangeremo.
  = When you arrive, we’ll eat.
  Here the focus is simply on the future moment.

• Quando avrai finito, mangeremo.
  = When you have finished, we’ll eat.
  Here the finishing must happen first.

In your sentence, the roundabout must be behind you before accelerating becomes appropriate, so the future perfect fits well.

It can suggest a mix of meanings, depending on context.

In this sentence, potrai most naturally suggests:

• permission: it will be okay to accelerate
• possibility: it will be possible/safe to accelerate
• instruction/advice: that is the right moment to do it

So although it literally means you will be able to, in context it sounds like practical guidance, especially in a driving situation.

La rotonda means the roundabout, referring to a specific roundabout already known from the situation.

In driving instructions, the speaker and listener usually both know which roundabout is meant, either because they are approaching it or because it has already been mentioned.

If you said una rotonda, it would mean a roundabout, which sounds less specific and would not fit the context as well.

It is informal singular because of potrai, which comes from tu.

If you wanted the formal singular Lei form, you would say:

• Quando avremo oltrepassato la rotonda, potrà accelerare un po’.

If you wanted the plural you all form, you would say:

• Quando avremo oltrepassato la rotonda, potrete accelerare un po’.

So potrai tells you the speaker is addressing one person informally.