Eu vejo a igreja.

Yes. In Brazilian Portuguese, the subject pronoun is often optional because the verb form already shows who is doing the action.

• Eu vejo a igreja. = I see the church.
• Vejo a igreja. also works and still means I see the church.

Including eu can make the sentence clearer, more emphatic, or more contrastive, especially in speech.

Vejo is the 1st person singular present tense form of the verb ver (to see).

Present tense of ver:

• eu vejo = I see
• você / ele / ela vê = you / he / she sees
• nós vemos = we see
• vocês / eles / elas veem = you / they see

So vejo specifically means I see.

Portuguese often uses articles more than English does. So where English might say I see church only in a special context, Portuguese normally says Eu vejo a igreja or Eu vejo uma igreja.

Here:

• a igreja = the church
• uma igreja = a church

Using a means the church is specific or identifiable in context.

Because igreja is a feminine noun in Portuguese.

• a igreja = the church
• uma igreja = a church

In general:

• o / um are used with many masculine nouns
• a / uma are used with many feminine nouns

Since igreja is feminine, it takes a.

Yes, in this sentence the word order is the standard Subject + Verb + Object pattern:

• Eu = subject
• vejo = verb
• a igreja = object

So it matches English very closely:

• I see the church
• Eu vejo a igreja

A rough pronunciation guide:

• vejo sounds roughly like VEH-zhoo or VEH-joo, depending on accent
• igreja sounds roughly like ee-GREH-zhah

A few helpful notes:

• The j in Brazilian Portuguese usually sounds like the s in measure or the zh sound.
• The r in igreja is not like a strong English r.
• The final a in igreja is pronounced, not silent.

Because ver is an irregular verb. Many Portuguese verbs follow very predictable patterns, but ver changes in the eu form:

• infinitive: ver
• eu vejo

This is something you simply have to memorize. It is very common, so you will see it often.

Usually yes, depending on context. The Portuguese present tense can often cover both:

• I see
• I am seeing

So Eu vejo a igreja can mean I see the church, and in the right context it may also be understood as I’m seeing the church.

If you want to emphasize an ongoing action in Brazilian Portuguese, you can also use:

• Estou vendo a igreja. = I am seeing / looking at the church

Yes, it is grammatically correct and natural. But in real conversation, people often omit eu unless they want emphasis:

• Vejo a igreja.

Also, depending on the situation, a Brazilian might more naturally say:

• Estou vendo a igreja. = I’m seeing the church / I can see the church

Both are correct; the more natural choice depends on context.

A igreja is the direct object of the verb ver.

It is the thing being seen:

• Who sees? eu
• What do I see? a igreja

So the structure is:

• subject: eu
• verb: vejo
• direct object: a igreja

Yes. In Brazilian Portuguese, yes/no questions are often made just by raising the intonation:

• Eu vejo a igreja? = Do I see the church?
• Você vê a igreja? = Do you see the church?

The word order usually stays the same, unlike in English, which often uses do.

You would change the definite article a to the indefinite article uma:

• Eu vejo a igreja. = I see the church.
• Eu vejo uma igreja. = I see a church.

So the noun stays the same, but the article changes depending on whether the church is specific or non-specific.