Depois da caminhada, Ana quis comer um pastel no quiosque da praça.

Because de + a contracts to da in Portuguese.

So:

• de + a caminhada → da caminhada
• de + o → do
• em + o → no
• em + a → na

These contractions are very common and usually required in normal Portuguese.

Here, caminhada is a feminine noun, so it takes a:

• a caminhada
• depois da caminhada = after the walk

Caminhada is a noun, meaning walk, stroll, or hike/walking outing, depending on context.

• caminhada = the walk
• caminhar = to walk

So:

• Depois da caminhada = after the walk
• Depois de caminhar = after walking

Both are possible, but they are structured differently:

• caminhada names the activity as a thing
• caminhar describes the action itself

Quis is the preterite form of querer for ele/ela/você and also eu.

In this sentence, it matches Ana:

• Ana quis = Ana wanted

The verb querer is irregular in the preterite:

• eu quis
• você/ele/ela quis
• nós quisemos
• vocês/eles/elas quiseram

So quis does not look much like querer, but it is the correct past form.

Because querer is often followed by another verb in the infinitive to say what someone wanted to do.

Pattern:

• querer + infinitive

Examples:

• quero sair = I want to leave
• ela quis comer = she wanted to eat
• eles querem comprar = they want to buy

So quis comer means wanted to eat.

This is a very common learner question because both can translate as wanted.

In this sentence, quis suggests a completed, specific desire at that moment:

• After the walk, Ana wanted to eat...

It sounds like a concrete event in the story.

Queria would sound more like:

• an ongoing state
• background information
• or sometimes a softer tone

Compare:

• Ana quis comer um pastel.
  Ana decided/wanted to eat a pastel at that moment.

• Ana queria comer um pastel.
  Ana was wanting a pastel / felt like eating a pastel / had the desire to eat one.

Both are possible in some contexts, but quis fits a sequence of events very naturally.

In Brazil, pastel usually means a fried pastry with savory or sweet filling, often sold at street stands, markets, or snack bars.

It is not the same as the English color word pastel, and it is usually not the same as a dessert pastry in English-speaking contexts.

Common fillings include:

• cheese
• ground beef
• chicken
• pizza-style filling
• heart of palm

So um pastel here is a very Brazilian food item.

Because no is the contraction of em + o.

• quiosque is a masculine noun
• so it takes o quiosque
• em o quiosque becomes no quiosque

Here em means something like at or in, depending on context.

So:

• no quiosque = at the kiosk / in the kiosk stand

Not exactly possession in the English sense.

da praça literally means of the square, but in natural English it means something like:

• the kiosk in the square
• the square’s kiosk
• the kiosk by/in the plaza

So o quiosque da praça is the kiosk associated with that square.

This structure is very common in Portuguese:

• o portão da escola = the school gate
• o centro da cidade = the city center
• o café da esquina = the cafe on the corner

Because Depois da caminhada is an introductory time expression placed at the beginning of the sentence.

English does the same thing:

• After the walk, Ana wanted to eat...

In Portuguese, the comma is very natural here, especially because the opening phrase is a little longer. It helps separate the time setting from the main clause.

Without the comma, the sentence might still be seen sometimes, but the comma is the safer and more standard choice here.

Yes. That is also correct.

Both versions are natural:

• Depois da caminhada, Ana quis comer um pastel no quiosque da praça.
• Ana quis comer um pastel no quiosque da praça depois da caminhada.

The difference is mostly emphasis:

• Starting with Depois da caminhada puts the time frame first.
• Putting it later makes the sentence feel a bit more neutral or less framed.

In standard written Portuguese, especially in neutral textbook style, you normally just say Ana.

So:

• Ana quis comer... is perfectly correct.

In some parts of Brazil, people often use an article before a person’s name in everyday speech:

• A Ana quis comer...

That is common in many regions, but leaving the article out is always a safe choice for learners, especially in writing.

Here are the main nouns:

• a caminhada → feminine
• um pastel / o pastel → masculine
• o quiosque → masculine
• a praça → feminine

You can see the gender through the articles and contractions:

• da caminhada → feminine
• um pastel → masculine
• no quiosque → masculine
• da praça → feminine

This matters because Portuguese articles, contractions, and some adjectives must agree with the noun’s gender.

Approximate Brazilian pronunciations:

• depois → deh-POYS
• caminhada → kah-mee-NYAH-dah
• quis → kees
• comer → koh-MEHR
• pastel → pahs-TEHW
• quiosque → kee-OS-kee
• praça → PRAH-sah

A few useful notes:

• nh in caminhada sounds like the ny in canyon
• qu before i in quiosque sounds like k
• ç in praça sounds like s

Yes, in many contexts the English translation may come out either way.

Literally:

• depois da caminhada = after the walk

But if the context is casual, English may naturally render it as:

• after walking
• after their walk
• after the walk

Portuguese often uses a noun phrase where English might prefer a verb phrase. So the exact English wording can vary even when the Portuguese stays the same.