O estágio é presencial três vezes por semana, mas o curso continua remoto nos outros dias.

Portuguese uses definite articles much more often than English.

In this sentence, o estágio and o curso refer to specific things already known in the context, so o sounds natural:

• o estágio
• o curso

In English, we often drop the in general statements, but Portuguese usually keeps the article in cases like this.

Compare:

• O curso começa amanhã. = The course starts tomorrow.
• A aula foi cancelada. = The class was canceled.

Dropping the article here would usually sound less natural or incomplete.

Presencial means something like in person, face-to-face, or on-site, depending on context.

In Brazilian Portuguese, it is very commonly used for work, classes, meetings, and events:

• aula presencial = in-person class
• trabalho presencial = on-site work
• reunião presencial = in-person meeting

So o estágio é presencial means the internship happens physically at the workplace, not online.

The two verbs do different jobs:

• é comes from ser and states a basic characteristic:
  O estágio é presencial. = The internship is in person.
• continua comes from continuar and means continues / remains:
  o curso continua remoto = the course remains remote.

So the sentence is contrasting two situations:

• the internship is in person
• the course continues remote

Using continua suggests that the course was already remote before and still is.

Because remoto agrees with curso, which is a masculine noun:

• o curso remoto

In Portuguese, adjectives usually agree in gender and number with the noun they describe.

Examples:

• o curso remoto
• a aula remota
• os cursos remotos
• as aulas remotas

So if the noun changed, the adjective would also change.

Três vezes por semana means three times per week.

Structure:

• três vezes = three times
• por semana = per week

This is a very common pattern:

• uma vez por mês = once a month
• duas vezes por ano = twice a year
• quatro vezes por dia = four times a day

Portuguese often uses por where English uses a or per in frequency expressions.

Yes, you may hear três vezes na semana, especially in informal speech, but três vezes por semana is the most standard and widely accepted form for frequency.

General tendency:

• três vezes por semana = standard, neutral, very common
• três vezes na semana = common in speech, but less formal/less standard in some contexts

For a learner, por semana is the safest choice.

Mas means but and introduces a contrast.

The contrast is:

• the internship is in person three times a week
• the course is still remote on the other days

So mas connects two different conditions in a natural way.

You could sometimes use porém or no entanto, but mas is the most common and neutral choice in everyday Portuguese.

Nos outros dias means on the other days.

Nos is a contraction:

• em + os = nos

So:

• nos outros dias literally comes from em os outros dias

This contraction is mandatory in normal Portuguese.

Other common contractions:

• em + o = no
• em + a = na
• em + as = nas

Examples:

• no curso
• na escola
• nos outros dias
• nas férias

Normally, nos outros dias is understood as on the other days, meaning the days that are not included in the three times per week.

So the most natural interpretation is:

• internship: in person three days a week
• course: remote on the remaining days

It sounds like a complete division of the week, not just a few extra days.

Yes, the time expression can move.

The sentence uses a very natural order:

• O estágio é presencial três vezes por semana

But these are also possible:

• O estágio é presencial por três vezes na semana — possible, but less natural
• Três vezes por semana, o estágio é presencial — fine, more emphasis on frequency
• O estágio, três vezes por semana, é presencial — possible, but more marked

The original version is the most natural everyday phrasing.

Yes, there can be a slight difference.

• remoto emphasizes that something happens at a distance, not in person
• online emphasizes that it happens through the internet or a digital platform

In many educational and work contexts, they overlap a lot. But remoto is often the more general contrast to presencial.

So in this sentence, remoto works especially well because the sentence is contrasting:

• presencial
• remoto

Because Portuguese verb endings work differently from English.

Continua is the he/she/it/you(formal) form of continuar in the present tense:

• eu continuo
• você continua
• ele/ela continua
• o curso continua

Since o curso is third-person singular, the correct form is continua.

English adds -s in he/she/it continues, but Portuguese uses its own verb ending instead.

The accents matter both for spelling and pronunciation.

• estágio has an accent on á
• três has an accent on ê

A few useful points:

• três always has the accent in standard spelling
• estágio also always keeps its accent

For learners, the main takeaway is: don’t drop written accents in Portuguese, because they are part of the correct spelling and often signal stress.

Yes. The structure would still work well.

For example:

• O trabalho é presencial três vezes por semana, mas o curso continua remoto nos outros dias.

This sentence keeps the same grammar:

• article + noun
• é presencial
• frequency expression
• contrast with mas
• continua remoto
• nos outros dias

So this sentence is a useful model for many similar situations.