Em julho, eu prefiro ficar em casa e ler no sofá.

Em julho means in July. In Portuguese, em is commonly used with months:

• em julho = in July
• em agosto = in August
• em dezembro = in December

This is different from English, where we use in, but the idea is the same.

The comma separates the time expression from the rest of the sentence. It works a lot like English:

• In July, I prefer...

In Portuguese, this comma is common and natural when a time phrase comes first. You may also sometimes see it without the comma in informal writing, but the comma is perfectly standard here.

Yes, eu can be omitted.

Portuguese often leaves out subject pronouns when the verb form already makes the subject clear:

• Em julho, eu prefiro ficar em casa...
• Em julho, prefiro ficar em casa...

Both are correct. Including eu can add emphasis, clarity, or contrast.

After preferir, Portuguese normally uses an infinitive when talking about preferring to do something:

• prefiro ficar = I prefer to stay
• prefiro ler = I prefer to read
• prefiro sair = I prefer to go out

So prefiro fico is not correct, because fico is a conjugated verb, and after prefiro you want the infinitive: ficar.

Because they depend on prefiro.

The structure is:

• eu prefiro + infinitive

Here, the speaker prefers two actions:

• ficar em casa
• ler no sofá

So both verbs stay in the infinitive:

• prefiro ficar
• e ler

This is similar to English: I prefer to stay home and read on the couch.

Because preferir does not normally use de before another verb.

Correct:

• Prefiro ficar em casa.

Not correct:

• Prefiro de ficar em casa.

This differs from verbs like gostar de:

• Gosto de ficar em casa.

So a learner often needs to remember that preferir and gostar de behave differently.

Em casa is the normal expression for at home or home.

• ficar em casa = stay home / stay at home

You usually use em casa when talking about home in a general sense, not a specific house.

Na casa means in/at the house, usually a specific house:

• Estou na casa da minha mãe. = I’m at my mother’s house.

So in this sentence, em casa is the natural choice.

No = em + o.

• em o sofá becomes no sofá

Portuguese usually uses the article here:

• ler no sofá = read on the couch/sofa

This sounds natural in Brazilian Portuguese. English often omits articles in places where Portuguese keeps them.

Here it means on the sofa.

Portuguese em covers several meanings that English separates into in, on, and sometimes at. So:

• no sofá = on the sofa
• na cadeira = on the chair
• na cama = in/on the bed, depending on context

You choose the natural English translation from context.

They are related, but not exactly the same.

• ficar em casa = to stay home / remain at home
• estar em casa = to be at home

In this sentence, prefiro ficar em casa emphasizes the choice of staying there, rather than going out.

You normally want e here because it links the two preferred actions clearly:

• prefiro ficar em casa e ler no sofá

Without e, it sounds less complete and less natural in this simple sentence. The e works just like and in English.

Yes, very natural.

It simply means reading while sitting or lying on the sofa. Other equally natural variations might be:

• ler no sofá da sala = read on the living-room sofa
• ler na cama = read in/on bed
• ler na varanda = read on the porch/balcony

Yes. Portuguese allows some flexibility.

For example:

• Em julho, eu prefiro ficar em casa e ler no sofá.
• Eu prefiro, em julho, ficar em casa e ler no sofá.
• Eu prefiro ficar em casa e ler no sofá em julho.

The first version is the most natural if you want to emphasize the time frame in July. Putting Em julho at the start makes the sentence feel well organized and clear.

In Brazilian Portuguese, julho is approximately ZHOO-lyoo, though that is only an approximation.

Two sounds may stand out for English speakers:

• j in Portuguese sounds like the s in measure or the g in genre
• lh is a special sound, similar to the lli in some pronunciations of million, though not exactly the same

So julho can be tricky at first, especially the lh.

Because it is the first person singular form of preferir in the present tense:

• eu prefiro = I prefer
• você prefere = you prefer
• ele/ela prefere = he/she prefers
• nós preferimos = we prefer
• eles/elas preferem = they prefer

So the -o ending tells you the subject is eu, even if eu is omitted.

Yes, but the meaning changes slightly.

• Eu prefiro ficar em casa e ler no sofá. = I prefer to stay home and read on the sofa.
• Eu gosto de ficar em casa e ler no sofá. = I like staying home and reading on the sofa.

Prefiro expresses preference, often in contrast with other possibilities.
Gosto de simply says you like something.