Eu saí de casa sem esconder nada de você.

Yes, eu is optional here.

Portuguese often drops subject pronouns when the verb already makes the subject clear. Since saí is the 1st person singular form, it already tells you the subject is I.

So both are correct:

• Eu saí de casa sem esconder nada de você.
• Saí de casa sem esconder nada de você.

Including eu can add emphasis, clarity, or contrast, but it is not required.

Saí is the pretérito perfeito (simple past) of the verb sair (to leave / to go out).

Here is the relevant part of the conjugation:

• eu saí = I left
• você/ele/ela saiu = you/he/she left
• nós saímos = we left

So Eu saí means I left.

The accent in saí shows that the i is pronounced separately from the a.

So saí is pronounced roughly like sah-EE, with two syllables at the end:

• sa-í

This is important because without the accent, the pronunciation pattern would be less clear and it would not be the correct spelling of this verb form.

For learners, the main thing to remember is:

• saí = I left
• stress falls on the final í

In Portuguese, casa often appears without an article when it means home in a general sense.

So:

• de casa = from home
• em casa = at home
• para casa = home / to home

But if you mean a specific house, the article is more likely:

• da casa do João = from João’s house
• daquela casa = from that house

So in saí de casa, casa means home, not just a building.

After sem (without), Portuguese commonly uses the infinitive to express without doing something.

So:

• sem esconder = without hiding
• sem falar = without speaking
• sem dizer nada = without saying anything

This is very natural in Portuguese. It works similarly to English without + -ing, but Portuguese normally uses the infinitive instead of a gerund here.

So:

• sem esconder nada = without hiding anything

Esconder means to hide.

So:

• esconder nada = to hide nothing / hide anything

In this sentence, nada is the direct object of esconder:

• esconder nada = hide nothing

Combined with sem, it means:

• sem esconder nada = without hiding anything

Even though nada literally means nothing, in sentences like this the natural English translation is often anything.

With esconder, Portuguese commonly uses de for the person something is hidden from.

So:

• esconder algo de alguém = to hide something from someone

That is exactly what happens here:

• esconder nada de você = hide nothing from you

Using para você would not sound right in this structure.

A few examples:

• Escondi isso de você. = I hid that from you.
• Não escondo nada dele. = I hide nothing from him.

No, not in this sentence.

Here, de você goes with esconder, not with nada in the sense of about you.

So the structure is:

• esconder nada de você
• literally: hide nothing from you

It does not mean:

• nothing about you

That would be a different idea entirely.

So the meaning is:

• I left home without hiding anything from you.

Yes, in Brazilian Portuguese you may hear versions with te, although usage varies by region and speaking style.

Possible versions include:

• Eu saí de casa sem esconder nada de você.
• Eu saí de casa sem te esconder nada.
• Eu saí de casa sem esconder nada de ti. (less common in much of Brazil, but used in some regions)

A few notes:

1. de você is very clear and neutral in Brazil.
2. te is extremely common in speech, even when the speaker also uses você elsewhere.
3. Some combinations that mix forms may be common in real Brazilian speech, even if they look inconsistent in more traditional grammar.

For a learner, de você is a safe and natural choice.

The given order is natural:

• Eu saí de casa sem esconder nada de você.

You can move some elements, but not every rearrangement sounds equally natural.

For example:

• Sem esconder nada de você, eu saí de casa.
  This is possible, but more literary or emphatic.

Less natural:

• Eu saí de casa sem esconder de você nada.

That last version is understandable, but it sounds awkward. Portuguese usually prefers:

• esconder nada de você

So the original word order is a good one to learn.

In Brazilian Portuguese, você is the normal everyday word for you in many regions and situations.

It is not especially formal in Brazil. In fact, it is often the most neutral choice.

So in this sentence:

• de você = from you

Depending on the region or context, a speaker might instead use:

• tu
• o senhor / a senhora (more formal or respectful)

But você is perfectly natural and very common.

A rough pronunciation guide is:

Eu saí de casa sem esconder nada de você.

Approximate English-style pronunciation:

• eh-ooh sah-EE djee KAH-zah seng ees-kohn-DER NAH-dah djee voh-SEH

A few useful details:

• saí: stress on the last syllable
• casa: the s sounds like a z in Brazilian Portuguese
• sem: often sounds like sẽj̃ or sẽ depending on the speaker
• de: often sounds like djee before some sounds in many Brazilian accents
• você: stress on cê

This is only an approximation, but it can help you get started.

Yes, it sounds natural and correct.

It clearly means that the speaker left home and did so without hiding anything from the other person.

The sentence is grammatically solid and idiomatic. A Brazilian speaker could definitely say it this way.