Eu gosto de comer agora.

Gosto is the first-person singular present tense form of the verb gostar.

So:

• gostar = to like
• gosto = I like

The -o ending is a strong clue that the subject is I in Portuguese.

Because gostar normally uses the preposition de.

In Brazilian Portuguese, you usually say:

• gostar de algo = to like something
• gostar de fazer algo = to like doing something

So these are correct:

• Eu gosto de pizza.
• Eu gosto de comer.

And this is not standard:

• Eu gosto comer.

Think of gostar de as a set pattern you need to memorize.

Because after gostar de, when the next idea is an action, Portuguese uses the infinitive.

So:

• gosto de comer = I like to eat / I like eating
• gosto de estudar = I like to study / I like studying
• gosto de viajar = I like to travel / I like traveling

English can use either to eat or eating, but Portuguese usually uses the infinitive here.

You can absolutely say Gosto de comer agora.

In Portuguese, subject pronouns are often omitted because the verb ending already shows who the subject is. Since gosto clearly means I like, eu is optional.

• Eu gosto de comer agora.
• Gosto de comer agora.

Both are correct.

You might include eu for emphasis, clarity, or contrast.

It is grammatically correct, but by itself it can sound a little unusual depending on what you mean.

Why? Because gostar usually expresses a general liking or preference, not an immediate desire.

So:

• Eu gosto de comer agora sounds like I like eating now or I like to eat now, often with some contrast such as now rather than later
• If you mean I want to eat now, Brazilian Portuguese would more naturally use:
  • Quero comer agora.
  • Estou com vontade de comer agora.

So the sentence is fine, but the intended meaning matters.

Here, agora means now or right now.

It usually refers to the present moment.

However, its exact nuance depends on context:

• Eu gosto de comer agora.
  This may suggest now, at this moment, or now rather than later.

Be careful: agora usually does not mean nowadays. For nowadays, Brazilian Portuguese more often uses:

• hoje em dia

Yes. Portuguese allows some flexibility, and changing the position can change the emphasis.

For example:

• Eu gosto de comer agora.
  Neutral: the time word comes at the end.

• Agora eu gosto de comer.
  This can mean Now I like to eat, possibly contrasting with the past.

• Eu agora gosto de comer.
  Also possible, often with a contrastive feeling, like I now like eating.

So the original word order is normal, but moving agora can shift the focus.

A rough Brazilian Portuguese pronunciation would be something like:

ehu GOS-too dji ko-MER a-GO-ra

A few useful notes:

• Eu often sounds like one syllable, something like ehu or yo
• gosto is stressed on the first syllable: GOS
• de in Brazil often sounds like dji
• comer is stressed on the last syllable: mer
• agora is stressed on go

Pronunciation varies by region, but this approximation is good for a learner.

Yes. That is a very common pattern.

With a noun:

• Eu gosto de café.
• Eu gosto de música.

With a verb:

• Eu gosto de correr.
• Eu gosto de cozinhar.
• Eu gosto de comer agora.

So once you learn gostar de, you can use it with many kinds of things.