Miro el rellotge i veig que encara tenim temps abans de l'exposició.

Catalan often drops subject pronouns because the verb ending already tells you who the subject is.

• miro = I look
• veig = I see
• tenim = we have

So jo and nosaltres are not necessary unless you want emphasis or contrast.

For example:

• Jo miro el rellotge = I look at the clock/watch (emphatic)
• Miro el rellotge = normal, neutral way to say it

Because mirar in Catalan normally takes a direct object, without a preposition.

So:

• Miro el rellotge = I look at the clock/watch

This is different from English, which usually needs at in look at. Catalan often just uses mirar + object.

Catalan uses the definite article very naturally in many places where English may or may not use one. Here, el rellotge simply means the clock/watch.

So Miro el rellotge is completely natural Catalan. The article does not sound overly specific or strange.

It can mean either, depending on context.

• rellotge = clock / watch

Catalan does not always make the same distinction English does. So if the meaning shown to the learner says clock, that is fine; if it says watch, that can also be fine in the right context.

Veig is the first-person singular present of veure, meaning to see.

This verb is somewhat irregular, so learners often do not recognize it at first.

Present tense of veure:

• veig = I see
• veus = you see
• veu = he/she sees
• veiem = we see
• veieu = you all see
• veuen = they see

So in the sentence:

• veig que... = I see that...

Here que introduces a subordinate clause:

• veig que encara tenim temps
• literally: I see that we still have time

After verbs like see, think, know, say, Catalan very often uses que to introduce what follows.

Examples:

• Crec que vindrà = I think that he/she will come
• Sé que tens raó = I know that you are right

In English, that is sometimes omitted, but in Catalan que is very normal here.

In this sentence, encara means still.

• encara tenim temps = we still have time

It is a very common word, but its meaning depends on context. It can mean things like:

• still
• yet
• sometimes even

Here, the idea is that there is time remaining before the exhibition.

Yes. Tenir means to have, and tenim is the we form:

• tenim = we have

So:

• tenim temps = we have time

This is a very common expression in Catalan, just as in English.

Useful present tense forms of tenir:

• tinc = I have
• tens = you have
• té = he/she has
• tenim = we have
• teniu = you all have
• tenen = they have

Because abans normally needs de before a noun or an infinitive.

So:

• abans de l'exposició = before the exhibition
• abans de sortir = before leaving

If a full clause follows, Catalan usually uses abans que instead:

• abans que comenci l'exposició = before the exhibition starts

So in your sentence, since l'exposició is a noun phrase, de is required.

Because the feminine singular article la becomes l' before a vowel sound.

So:

• la exposició → l'exposició

This kind of contraction is very common in Catalan:

• l'escola
• l'amiga
• l'hora

So abans de l'exposició is the correct form.

Yes. The sentence uses the present indicative throughout:

• miro = I look
• veig = I see
• tenim = we have

This is natural because the speaker is describing what is happening right now: they look at the clock/watch, realize something, and note that there is still time before the exhibition. Catalan uses the present here just as English does.