Tan bon punt trobem la punxada, posarem el pegat.

It means as soon as.

It is a fixed expression used to introduce something that happens immediately after something else. In this sentence:

Tan bon punt trobem la punxada, posarem el pegat.
= As soon as we find the puncture, we’ll put on the patch.

You should learn tan bon punt as a whole expression rather than trying to translate each word separately.

It is perfectly correct, but it often feels a bit more formal or written than some other options.

A native speaker might also say:

• Tan aviat com trobem la punxada...
• Quan trobem / trobin la punxada...
• Així que trobem la punxada...

So tan bon punt is natural, but it can sound slightly more polished or literary than the most everyday spoken alternatives.

Because after expressions like tan bon punt referring to the future, Catalan usually does not use the future tense in that subordinate time clause.

English says:

• As soon as we find it, we’ll fix it

not:

• As soon as we will find it...

Catalan works similarly:

• Tan bon punt trobem la punxada, posarem el pegat.

So the second clause has the future idea clearly marked by posarem (we will put), while the time clause uses trobem.

This is a very good question because trobem can look the same in both moods for nosaltres.

With future meaning after a time expression like tan bon punt, Catalan often uses the present subjunctive. For trobar, the nosaltres form of the present subjunctive is trobem, and the present indicative form is also trobem. So in this sentence, the form itself does not show the difference.

In other persons, you would see it more clearly:

• Tan bon punt trobi la punxada...
• Tan bon punt trobin la punxada...

So a learner should be aware that the mood may be subjunctive here, even though the form is identical.

Because it describes the main action that will happen later: we will put the patch on.

Posarem is the future form of posar:

• jo posaré
• tu posaràs
• ell/ella posarà
• nosaltres posarem
• vosaltres posareu
• ells/elles posaran

So posarem el pegat means we will put on the patch.

Catalan usually leaves subject pronouns out unless they are needed for emphasis or contrast.

The verb ending already tells you who the subject is:

• trobem = we find
• posarem = we will put

So nosaltres is unnecessary here. You could say it for emphasis:

Tan bon punt nosaltres trobem la punxada, posarem el pegat.

But that sounds more marked, as if you were contrasting we with someone else.

Here it most likely means the puncture or the hole causing the flat.

The noun punxada can have several related meanings depending on context, such as:

• a puncture
• a prick
• a stab / sharp pain
• sometimes the sensation of an injection

In this sentence, because of el pegat (the patch), the meaning is clearly something like a puncture in a tire or inner tube.

Catalan uses definite articles very naturally in places where English may or may not use the.

Here:

• la punxada = the puncture
• el pegat = the patch

These are specific things in the situation: the puncture we are trying to find, and the patch we are going to apply.

Using the articles sounds completely normal in Catalan.

Yes, more or less. Literally, it is we will put the patch.

In natural English, though, you would often say:

• we’ll put on the patch
• we’ll apply the patch
• we’ll patch it

Catalan often uses posar very broadly in situations where English prefers a more specific verb like put on, apply, or stick on.

The comma is normal and helpful here because the sentence starts with a subordinate clause:

Tan bon punt trobem la punxada, posarem el pegat.

That first part sets the time condition, and the comma separates it from the main clause.

You may occasionally see punctuation used a bit more loosely in informal writing, but with this structure, the comma is standard and recommended.

Yes, in many contexts that would also make sense, but the nuance is slightly different.

• la punxada focuses on the puncture
• el forat focuses on the hole

In practical terms, especially when talking about a tire, the two can be very close in meaning. But punxada is often the more idiomatic choice when you mean the puncture problem as a whole, while forat is more literally the hole itself.