O país ainda é pobre.

Here ainda means still.

So O país ainda é pobre = The country is still poor.

A very useful contrast:

• ainda = still
• ainda não = not yet

Examples:

• O país ainda é pobre. = The country is still poor.
• O país ainda não é rico. = The country is not rich yet.

That is the most natural word order in normal Brazilian Portuguese.

The basic structure is:

• O país = the country
• ainda = still
• é = is
• pobre = poor

So:

• O país ainda é pobre.

You may sometimes see ainda in other positions, but this version sounds the most neutral and everyday.
For example, O país é ainda pobre is possible, but it sounds more formal or literary.

Portuguese often uses ser for characteristics seen as more essential, general, or lasting, and estar for states seen as more temporary.

Here, é pobre presents poverty as a general condition of the country, not just a temporary mood or momentary state.

• O país é pobre. = The country is poor.
  (general characteristic / broader condition)

If you said:

• O país está pobre,
  that would sound less neutral and more context-dependent, as if the country has become poor or is in a poor state right now.

So in this sentence, ser is the natural choice.

É is the 3rd person singular present tense form of ser.

That means it goes with:

• ele = he
• ela = she
• você = you
• singular nouns like o país

A quick mini-chart of ser in the present:

• eu sou
• você / ele / ela é
• nós somos
• vocês / eles / elas são

So:

• O país é pobre.

In Portuguese, definite articles like o, a, os, as are used more often than in English.

O país usually means the country, referring to a specific country already understood from context.

In a normal sentence, O país sounds natural.
Using just país would sound incomplete in standard speech, except in special styles like:

• headlines
• notes
• dictionaries
• very compressed writing

So:

• O país ainda é pobre. = normal sentence
• País ainda é pobre = not normal standard phrasing

País is pronounced roughly like pah-EES.

The stress is on the second syllable:

• pa-ÍS

The accent mark on í helps show that:

1. the stress falls there, and
2. the vowels are pronounced separately

So país has two syllables:

• pa
• ís

This is different from a word where the vowels might blend differently.

Because pobre is an adjective used as a predicate adjective after ser.

This is very common in Portuguese:

• A casa é grande. = The house is big.
• Ele é inteligente. = He is intelligent.
• O país é pobre. = The country is poor.

So the pattern is:

• subject + ser + adjective

That is exactly what you have here.

Yes and no.

Pobre does not change between masculine and feminine singular:

• o país pobre
• a nação pobre

But it does change in the plural:

• o país pobre
• os países pobres
• a nação pobre
• as nações pobres

So:

• singular: pobre
• plural: pobres

Yes, depending on the sentence.

In affirmative sentences, ainda often means still:

• O país ainda é pobre. = The country is still poor.

In negative sentences, especially with não, it often corresponds to yet:

• O país ainda não é rico. = The country is not rich yet.

So a very useful pattern is:

• ainda = still
• ainda não = not yet

Yes. It is natural and grammatically straightforward.

It sounds like something you might read or hear in:

• news
• history
• economics
• social commentary

It is a simple, neutral sentence structurally:

• O país = subject
• ainda é = verb phrase
• pobre = adjective

The only thing to keep in mind is that the idea itself can be politically or socially sensitive depending on context, but grammatically the sentence is completely normal.

Yes.

• O país é pobre. = The country is poor.
• O país ainda é pobre. = The country is still poor.

Adding ainda gives the idea that this condition continues, possibly despite change, expectation, or time passing.

So ainda adds an important nuance:

• without it = simple statement
• with it = continuing situation

The pattern is:

definite article + noun + adverb + verb + adjective

More specifically:

• O = the
• país = country
• ainda = still
• é = is
• pobre = poor

So the full structure is:

O país + ainda + é + pobre

This is a very useful model for making other sentences:

• A cidade ainda é pequena. = The city is still small.
• A economia ainda é fraca. = The economy is still weak.
• O problema ainda é sério. = The problem is still serious.