O giz branco partiu-se, mas a Ana continuou a escrever com calma.

In European Portuguese, it is very common to use the definite article before a person’s name:

• a Ana
• o João

This is especially normal in everyday speech and very common in Portugal. English does not do this, so it feels unusual to learners.

A few notes:

• a here is the feminine singular definite article, not the preposition to.
• You will also hear names without the article in some contexts, but a Ana is very natural in Portugal.

So in this sentence, a Ana simply means Ana, with the article used in the usual Portuguese way.

Portuguese often uses the definite article where English might not.

Here, o giz branco means the white chalk. The article o shows that we are talking about a specific piece of chalk, not chalk in general.

Compare:

• giz branco = white chalk, chalk that is white, or white chalk in a more general sense
• o giz branco = the white chalk, a specific one

So the article makes the noun phrase more definite and concrete.

In Portuguese, adjectives usually come after the noun.

So:

• giz branco = white chalk
• literally: chalk white

This is the normal order. Portuguese can sometimes place adjectives before the noun, but that often changes the tone, style, or meaning. In ordinary description, noun + adjective is the most common pattern.

Here, partiu-se means something like broke or snapped.

The -se is important because it makes the verb work in a more intransitive or event-focused way. Instead of saying that someone broke the chalk, the sentence presents the chalk as undergoing the change:

• partiu o giz = he/she broke the chalk
• o giz partiu-se = the chalk broke

This is very common in Portuguese. English often just uses an intransitive verb like broke, while Portuguese often uses a verb + se structure.

So partiu-se is not really reflexive in the literal English sense of broke itself. It is better understood as a normal Portuguese way to say that something broke.

This is because European Portuguese normally uses enclisis in affirmative main clauses, which means the clitic pronoun goes after the verb.

So in Portugal Portuguese, this is the normal pattern:

• partiu-se
• levantou-se
• chamou-me

In many other contexts, the pronoun can move before the verb, but after the verb is the standard choice in a simple affirmative sentence like this one.

This is an important feature of European Portuguese and often differs from Brazilian Portuguese, where pronouns before the verb are more common.

Yes, quebrou-se would also be possible in many contexts, but there is a slight nuance.

Both can mean broke, but:

• quebrar-se is a very general verb for to break
• partir-se often suggests splitting, snapping, or breaking into pieces

For a stick of chalk, partiu-se sounds very natural because chalk often snaps into two pieces.

So partiu-se fits the image especially well.

After continuar, European Portuguese normally uses a + infinitive:

• continuar a escrever
• continuar a falar
• continuar a trabalhar

So continuou a escrever means she continued writing or she kept writing.

The preposition a is required here in standard European Portuguese. Saying continuou escrever would sound incomplete or incorrect.

In European Portuguese, continuou a escrever is the normal and preferred form.

The gerund form escrevendo exists, but European Portuguese uses the gerund much less than Brazilian Portuguese in this kind of structure.

So:

• Portugal Portuguese: continuou a escrever
• Brazilian Portuguese: continuou escrevendo is much more common

A learner of Portuguese from Portugal should strongly prefer continuar a + infinitive.

Both are possible in principle, but com calma is a very common and natural expression in Portuguese.

It means something like:

• calmly
• slowly and without stress
• in a composed way

Portuguese often prefers a noun phrase with com where English might use an adverb:

• com cuidado = carefully
• com atenção = attentively
• com calma = calmly

So continuou a escrever com calma sounds very natural and idiomatic.

They are in the pretérito perfeito simples, the normal past tense used for completed events in narration.

Here it fits because the sentence describes two finished past actions/events:

• the chalk broke
• Ana continued writing

This tense is very common when telling a story or describing a sequence of events.

If the imperfect were used instead, the meaning would change and the actions would sound more ongoing, habitual, or backgrounded.

Mas means but and introduces a contrast.

The contrast is:

• the chalk broke
• however, Ana kept writing calmly

So mas highlights that the second event happened despite the first one. It connects the two parts of the sentence in a very natural way.

It is part of the verbal expression continuar a escrever.

The main finite verb is:

• continuou = continued

Then:

• a escrever = writing / to write

Together they act like one unit meaning continued writing or kept writing.

This is a common pattern in Portuguese:

• começou a falar = started speaking
• aprendeu a ler = learned to read
• voltou a tentar = tried again

So escrever is an infinitive linked to the main verb by a.

Portuguese often omits subject pronouns because the verb ending already shows who the subject is. But in this sentence, the subject is actually expressed as a Ana, and once that appears, Portuguese does not need to repeat anything like ela.

So the structure is simply:

• o giz branco partiu-se
• mas a Ana continuou a escrever com calma

This is very natural. Portuguese generally avoids unnecessary repetition when the subject is already clear.

Yes, two things stand out in particular:

1. continuou a escrever
   The pattern continuar a + infinitive is especially characteristic of European Portuguese.

2. partiu-se
   The clitic placement after the verb, -se, is the standard European Portuguese pattern in an affirmative main clause.

So even though the sentence is understandable across the Portuguese-speaking world, its structure feels very natural for Portugal Portuguese.