Você gostaria de ir ao teatro comigo na terça-feira à noite?

In Brazilian Portuguese, você takes third-person singular verb forms.

So you get:

• você gostaria
• ele gostaria
• ela gostaria

This feels strange to English speakers at first, because English you has its own normal subject role. But in Portuguese, você is grammatically treated like a third-person form.

If you used tu in standard grammar, it would be:

• tu gostarias

Here, gostaria de + infinitive means would like to + verb.

So:

• gostaria de ir = would like to go

It is a polite, softer way to invite someone or ask about their interest.

Compare:

• Você quer ir...? = Do you want to go...?
  More direct, casual.
• Você gostaria de ir...? = Would you like to go...?
  More polite, gentler.

Because the verb gostar normally goes with de.

Examples:

• gosto de música
• gosto de viajar
• gostaria de ir

So gostaria de ir is the normal structure. Leaving out de would sound wrong in standard Portuguese.

Yes, but it depends on the region.

In much of Brazil, você is the most common everyday word for you. In other regions, tu is common.

A standard tu version would be:

• Tu gostarias de ir ao teatro comigo na terça-feira à noite?

In real Brazilian speech, you may also hear regional combinations like tu gostaria, but for learning purposes, você gostaria is a very safe and natural Brazilian Portuguese pattern.

Ao is a contraction of:

• a + o = ao

This happens because:

1. the verb ir commonly uses the preposition a in standard Portuguese
2. teatro is masculine
3. it appears here with the article o

So:

• ir a o teatro becomes ir ao teatro

This means to go to the theater.

You will also hear some Brazilians say ir no teatro in everyday speech, but ir ao teatro is the standard form you should learn first.

Because Portuguese has special pronoun forms after com.

So:

• comigo = with me
• contigo = with you
• conosco = with us

That is why the sentence uses:

• comigo = with me

You cannot say com eu here.

Na is a contraction of:

• em + a = na

With days of the week, Brazilian Portuguese very often uses the feminine article:

• a terça-feira

So:

• na terça-feira = on Tuesday

This is very common and natural.

You may also hear shorter versions such as:

• na terça
• terça-feira
• terça

depending on context and style.

In Portuguese, days of the week are normally not capitalized unless they begin a sentence.

So Portuguese writes:

• segunda-feira
• terça-feira
• quarta-feira

not the way English writes Tuesday, Wednesday, etc.

They are also normally written with a hyphen.

Because à is a contraction of:

• a + a = à

This is called crase in Portuguese.

In time expressions, this is very common:

• à noite = at night
• à tarde = in the afternoon / in the evening

So the accent is not random; it shows that two a sounds have merged into one written form.

A useful thing to remember: Portuguese says

• de manhã = in the morning

not à manhã.

So you have to learn these time expressions one by one.

It sounds natural and polite.

Você gostaria de ir ao teatro comigo na terça-feira à noite? is a perfectly good invitation. It is a little more courteous and careful than a very casual version.

A more casual way to say it would be:

• Quer ir ao teatro comigo na terça à noite?

Both are natural. The original sentence just sounds a bit more polite.

Yes. Portuguese allows some flexibility here.

These are all natural:

• Você gostaria de ir ao teatro comigo na terça-feira à noite?
• Você gostaria de ir comigo ao teatro na terça-feira à noite?
• Na terça-feira à noite, você gostaria de ir ao teatro comigo?

The original version is clear and very normal. Changing the order usually changes the emphasis a little, not the basic meaning.