A testemunha viu o suspeito?

In Portuguese, yes/no questions often use the same word order as a statement. The difference is usually shown by:

• intonation in speech
• a question mark in writing

So:

• A testemunha viu o suspeito. = The witness saw the suspect.
• A testemunha viu o suspeito? = Did the witness see the suspect?

Unlike English, Portuguese does not need an extra helping verb like did.

Viu means saw.

It is the 3rd person singular form of the verb ver (to see) in the preterite, which is a common past tense in Portuguese.

So here:

• a testemunha = the witness
• viu = saw
• o suspeito = the suspect

Literally, the sentence is close to The witness saw the suspect?

Yes. Ver is not conjugated completely regularly.

A few useful preterite forms are:

• eu vi = I saw
• você/ele/ela viu = you/he/she saw
• nós vimos = we saw
• eles/elas viram = they saw

So viu is the correct past form for he/she/it/you.

Not necessarily.

Testemunha is a noun that takes the article a, but it can refer to a male or female witness. In other words, the noun itself does not automatically tell you the person’s sex.

So:

• a testemunha can mean the witness whether the witness is male or female

This is something English speakers often notice because the word ends in -a, which often suggests feminine gender in Portuguese. Here, the important thing is: use a, but do not assume the witness must be a woman.

Usually, yes.

• o suspeito = the male suspect or the suspect when the suspect is understood as masculine
• a suspeita = the female suspect

So this sentence most naturally refers to a male suspect.

Because Portuguese uses definite articles very naturally with specific nouns.

Here:

• a testemunha = the witness
• o suspeito = the suspect

These articles show that we are talking about specific people, not just any witness or any suspect.

If you removed the articles, the sentence would sound unnatural in normal Portuguese conversation.

Here, o is an article, meaning the.

You can tell because it comes directly before a noun:

• o suspeito = the suspect

It is not the object pronoun him/it here.

A simple Brazil-Portuguese approximation is:

a tes-te-MU-nya viu u sus-PEI-tu?

A few helpful pronunciation notes:

• testemunha: the nh sounds like ny in canyon
• viu sounds roughly like vee-oo, often flowing together
• suspeito has the stress on pei

So testemunha sounds roughly like tes-te-MU-nya.

Yes, that is very close to the literal structure.

Portuguese says:

• A testemunha = The witness
• viu = saw
• o suspeito = the suspect

English normally turns that into a question with did:

• Did the witness see the suspect?

So the meaning matches, even though the grammar is different.

In more standard grammar, you could say:

• A testemunha o viu? = Did the witness see him?

Here, o is now a pronoun meaning him.

In everyday Brazilian Portuguese, many speakers also say:

• A testemunha viu ele?

That is very common in speech, even though traditional grammar books usually prefer o viu.

Yes. A testemunha viu o suspeito? is already a perfectly natural question, but Portuguese also has other ways to ask it, such as:

• A testemunha viu o suspeito mesmo? = Did the witness really see the suspect?
• Será que a testemunha viu o suspeito? = Do you think the witness saw the suspect? / Did the witness see the suspect?

But the original sentence is the most direct and basic form.

The pattern is:

subject + verb + object

So in this sentence:

• A testemunha = subject
• viu = verb
• o suspeito = direct object

This is one of the most common word orders in Portuguese, just like in English.