A sinalização está clara; contudo, perdemo-nos na bifurcação.

In Portuguese, it is very common to use the definite article with nouns where English often uses no article at all.

So a sinalização means the signage / the road signs / the signposting.

In this sentence, a sinalização sounds natural and idiomatic. Saying just sinalização would usually sound less complete here.

Sinalização usually refers to signage, signposting, or road signs / marked directions.

In this context, it most likely means the signs or directional markings that are supposed to help people find the right way.

So it is not just one sign; it can refer to the whole system of signs.

Portuguese often uses estar for a condition or state, especially when describing how something appears in a given situation.

• A sinalização está clara = The signage is clear
• This suggests that the signs are clear to read or understand.

If you said é clara, that would sound more like a general, inherent characteristic. In many real-life contexts, está clara is the more natural choice when talking about how clear something seems at that moment.

Because clara agrees with sinalização, which is a feminine singular noun.

• a sinalização → feminine singular
• clara → feminine singular adjective

If the noun were masculine, you would normally use claro instead.

Contudo means however, nevertheless, or still.

Yes, it is a bit more formal or written than some other common alternatives. In everyday speech, people might more often say:

• mas
• no entanto
• ainda assim

So this sentence sounds quite polished and written.

The semicolon links two closely related independent clauses:

• A sinalização está clara
• contudo, perdemo-nos na bifurcação

It works a bit like English in formal writing:

• The signage is clear; however, we got lost at the fork.

A comma might also appear in some contexts, but the semicolon helps show a stronger pause and a neat contrast between the two ideas.

This is the verb perder-se, which means to get lost.

Here is the breakdown:

• perdemos = we lose or we lost (depending on context)
• nos = ourselves / us
• perdemo-nos = we got lost / we lost ourselves

The pronoun nos is attached to the end of the verb with a hyphen. This is very typical in European Portuguese in affirmative main clauses.

So this structure is called enclisis: the pronoun comes after the verb.

Both word orders exist in Portuguese, but European Portuguese strongly prefers enclisis in many affirmative main clauses:

• Perdemo-nos na bifurcação.

In Brazilian Portuguese, nos perdemos is much more common.

So for Portugal Portuguese, perdemo-nos is exactly what you should expect here.

It can mean either:

• present tense: we lose
• preterite: we lost

The form is the same in the 1st person plural.

So context tells you which one it is. In this sentence, the natural reading is we got lost / we lost our way, so it is understood as a past event.

That is why the full sentence is best understood as something like:

• The signage was clear; however, we got lost at the fork.

Na is a contraction of:

• em
  • a = na

So:

• na bifurcação = at the fork / at the branching point

Portuguese very often contracts prepositions with articles.

Other common examples:

• de + o = do
• em + o = no
• a + a = à

Bifurcação means fork, branching, or split in the road/path.

It suggests a place where one route divides into two.

Depending on context, English translations could include:

• fork in the road
• junction where the road splits
• branching point

It is a fairly precise word and sounds a bit more formal than a very everyday expression like fork.

Yes, depending on the exact situation.

Possible alternatives include:

• cruzamento = crossroads / intersection
• entroncamento = junction
• desvio = turnoff / deviation
• ramificação = branching, though less common for ordinary road directions

But bifurcação is especially good when the idea is that one path splits into two branches.

Very often, yes.

• Perder by itself usually means to lose something:

  • Perdi as chaves. = I lost the keys.

• Perder-se means to get lost:

  • Perdi-me no centro da cidade. = I got lost in the city centre.

So the reflexive form changes the meaning from losing something to becoming lost oneself.

Yes, it sounds somewhat polished and written, mainly because of:

• contudo
• the semicolon
• bifurcação, which is a fairly precise word

In everyday speech, someone might say something simpler like:

• A sinalização estava clara, mas perdemo-nos na bifurcação.
• As indicações eram claras, mas perdemo-nos na bifurcação.

But the original sentence is perfectly correct and natural in a more formal or narrative style.

It can appear in certain contexts, but in standard European Portuguese, after nothing is pulling the pronoun forward, the preferred form is:

• perdemo-nos

Structures like nos perdemos are much more associated with Brazilian Portuguese, or with special cases where another word triggers the pronoun to come before the verb.

So for Portugal Portuguese, the sentence as given is the better model to learn.