What does it mean word for word?
The part como vai? literally means "how are you (going)?"
Which one should you use?
While como vai? is an idiomatic way to greet someone, como você está? is a more direct way to ask about a person's current state. Como estás? is the singular form of "How are you?"
Is there a formal and an informal way to say it?
olá, como vai? is a formal and polite greeting. In daily Brazilian Portuguese, it is much more common to use the informal oi, tudo bem? to say "hi, everything well?" If you need a formal way to ask "How are you?", you can use Como está?
How does it change in a sentence?
The phrase como vai? uses the third-person singular form of the verb ir (to go), which serves as a polite way to address someone.
When do people say it?
When someone asks you como vai? or tudo bem?, a common and natural response is Tudo bem, which means "Everything is well."
Did you know?
- The verb vai in como vai? is a direct descendant of the Latin vādit, which is also a relative of the English word 'evade'.
- In many Portuguese-speaking cultures, the greeting is often accompanied by a kiss on the cheek or a warm hug, depending on the gender and relationship of the speakers.
- In a very casual setting in Brazil, you might hear the greeting E aí?, which acts as a 'hello' and 'how are you' all in one, but it is very slang-heavy.
Examples in context
- Olá, como vai?Hello, how are you?
Sources
- Word origins: Wiktionary entries como, olá, vai, CC BY-SA 4.0.