Ela gosta de companhia.

Because gostar normally takes the preposition de in Portuguese.

So Portuguese says:

• gostar de algo = to like something
• gostar de alguém = to like someone

That is why you say:

• Ela gosta de companhia.
• Eu gosto de café.
• Eles gostam de música.

For an English speaker, this is one of the most important things to remember about gostar: it usually does not work like English to like.

Gosta is the third-person singular form of gostar in the present tense.

The present-tense forms are:

• eu gosto = I like
• você/ele/ela gosta = you/he/she likes
• nós gostamos = we like
• vocês/eles/elas gostam = you/they like

So in Ela gosta de companhia, gosta matches ela.

Usually, if you mean she likes company, you would keep ela for clarity.

Portuguese often drops subject pronouns, but with gosta, there is a problem: the form gosta can mean:

• he likes
• she likes
• you like (formal or in many Brazilian contexts, with você)

So if you just say Gosta de companhia, the subject is unclear unless the context already makes it obvious.

That is why Ela gosta de companhia is a natural full sentence.

Because companhia is being used in a general, abstract sense here.

Ela gosta de companhia means she likes company/companionship in general, not a specific company or a specific group of people.

Compare:

• Ela gosta de companhia. = She likes company in general.
• Ela gosta da companhia dele. = She likes his company.
• Ela gosta da companhia dos amigos. = She likes the company of her friends.

So no article is very natural when speaking generally.

The difference is mainly general vs. specific.

• de companhia = company in general
• da companhia = a specific company / the company

Examples:

• Ela gosta de companhia. = She likes company.
• Ela gosta da companhia da irmã. = She likes her sister’s company.

Also remember that da = de + a.

So gosta da companhia literally contains the same required de, but it combines with the article a.

No, not here.

In this sentence, companhia means company in the sense of having people around, companionship, or someone’s presence.

Portuguese companhia can also mean:

• companionship
• company, as in someone being with you
• sometimes even a company/business, depending on context

But in Ela gosta de companhia, the meaning is clearly the personal/social one, not the business one.

Normally, it sounds like a general fact or personal trait.

So Ela gosta de companhia usually means something like:

• she likes being around people
• she enjoys company in general

The present tense in Portuguese often covers general truths, habits, and ongoing states.

If you wanted to emphasize right now, Portuguese would usually use extra context, for example:

• Ela está querendo companhia agora. = She wants company now.
• Hoje ela quer companhia. = Today she wants company.

Yes. When it is followed by another verb, that second verb stays in the infinitive.

Examples:

• Ela gosta de ler. = She likes to read.
• Eu gosto de cozinhar. = I like cooking / to cook.
• Eles gostam de viajar. = They like to travel.

So gostar de works with:

• nouns: gosta de companhia
• verbs in the infinitive: gosta de conversar

A simple approximate pronunciation is:

EH-lah GOHS-tah djee kohm-pahn-YAH

A few notes:

• Ela = EH-lah
• gosta = GOHS-tah
• de often sounds like djee in many Brazilian accents before certain sounds, though in connected speech it may sound lighter
• companhia has stress near the end: com-pa-nhi-a, with nh sounding like the ny in canyon

A more natural Brazilian pronunciation may connect words smoothly, something like:

EH-lah GOHS-tah dji kohm-pahn-YAH

Yes, companhia is feminine.

You can see that in phrases like:

• a companhia
• boa companhia
• minha companhia

In the sentence Ela gosta de companhia, the femininity does not show through an article because there is no article there. But if you make it specific, it appears:

• Ela gosta da companhia dela.

Here, da shows that companhia is feminine:

• de + a = da

Yes, absolutely.

For example:

• Maria gosta de companhia.
• Ana gosta de companhia.

That works exactly the same way. The verb stays in the same form because Maria, Ana, and ela are all third-person singular.

They are similar but not identical.

• gostar de = to like
• adorar = to love / really love
• curtir = to enjoy, to be into, often more informal in Brazilian Portuguese

So:

• Ela gosta de companhia. = neutral and natural
• Ela adora companhia. = stronger; she really loves company
• Ela curte companhia. = more informal/colloquial

For learners, gostar de is the safest and most standard choice.

Yes, it is natural and correct.

It sounds like a general description of someone’s personality or preference. For example, you might say it about someone who does not like being alone.

Depending on context, Brazilians might also say:

• Ela gosta de estar com pessoas.
• Ela não gosta de ficar sozinha.
• Ela gosta de ter companhia.

But Ela gosta de companhia is perfectly normal and idiomatic.