Лікар бачить брову.

Because брову is the accusative singular form of брова.

In Лікар бачить брову, брову is the direct object: it is the thing the doctor sees. In Ukrainian, direct objects often go in the accusative case.

• брова = eyebrow (dictionary form, nominative singular)
• брову = eyebrow (accusative singular)

This is very common with feminine nouns ending in -а:

• книга → книгу
• рука → руку
• брова → брову

бачить is the 3rd person singular present tense form of the verb бачити, which means to see.

So:

• бачити = to see
• бачить = he/she sees, is seeing

In this sentence, it agrees with лікар because лікар is singular:

• Лікар бачить = The doctor sees

Because лікар is the subject of the sentence, so it stays in the nominative singular form.

Ukrainian nouns change form mainly depending on their role in the sentence. Here:

• лікар = the one doing the action → nominative
• брову = the thing being seen → accusative

So лікар stays in its basic dictionary form, while брова changes to брову.

Not necessarily.

лікар is grammatically a masculine noun, but it can be used:

• for a male doctor
• as a general profession word: doctor

If you specifically want to say female doctor, Ukrainian also has лікарка.

So depending on context:

• лікар = doctor / male doctor
• лікарка = female doctor

Also, in the present tense, бачить does not show gender, so from Лікар бачить брову alone, you cannot tell the doctor’s gender for sure unless context makes it clear.

Because Ukrainian has no articles.

English uses:

• a doctor
• the doctor

Ukrainian usually just says:

• лікар

Whether it means a doctor, the doctor, or sometimes just doctor depends on context.

So Лікар бачить брову could mean:

• A doctor sees an eyebrow
• The doctor sees the eyebrow

The exact interpretation comes from the situation, not from articles.

Yes. Ukrainian word order is more flexible than English because case endings show what each noun is doing.

The neutral, straightforward order here is:

• Лікар бачить брову.

But other orders are possible for emphasis, for example:

• Брову бачить лікар.
  Emphasis on the eyebrow
• Бачить лікар брову.
  More marked or stylistic

Even if the order changes, the endings still help you understand that:

• лікар is the subject
• брову is the object

Still, for learners, the basic subject–verb–object order is the safest starting point.

Because Ukrainian uses cases.

In this sentence:

• лікар is nominative → subject
• брову is accusative → direct object

English depends heavily on word order:

• The doctor sees the eyebrow is different from
• The eyebrow sees the doctor

Ukrainian relies more on endings, so the noun forms themselves give you clues.

That is why learning case endings is so important in Ukrainian.

The final ь is the soft sign. It does not make its own sound. Instead, it softens the consonant before it.

So in бачить, the final т is soft.

A rough English-friendly guide would be something like:

• ба = ba
• чить ≈ chyt’

A few helpful points:

• ч sounds like ch in chair
• и is not English ee; it is a shorter, more central vowel
• ь softens the final consonant

So бачить is roughly BA-chyt’, but the real Ukrainian sound is a bit different from English.

It can mean either, depending on context.

Ukrainian present tense often covers both ideas that English separates into:

• sees
• is seeing

So Лікар бачить брову may be understood as:

• The doctor sees an eyebrow
• The doctor is seeing an eyebrow

Usually context tells you which one sounds more natural.

Also, бачити is an imperfective verb, which is the normal choice for a general present meaning like this.

Because it is not needed here.

The sentence already names the subject:

• Лікар = doctor

So adding a pronoun would be unnecessary. Ukrainian often leaves out personal pronouns when the subject is clear from context or already stated.

English often repeats subjects more than Ukrainian does.

Yes, брову is singular: eyebrow.

The basic singular form is:

• брова = eyebrow

The plural is:

• брови = eyebrows

If eyebrows were the direct object, you would also usually use брови, because for inanimate plural nouns, the accusative is normally the same as the nominative.

So:

• Лікар бачить брови. = The doctor sees eyebrows / the eyebrows

The dictionary forms are:

• брову → брова
• бачить → бачити

This is important because in Ukrainian you often meet words in changed forms inside sentences.

A good habit is to ask:

• What is the base noun form?
• What is the infinitive of the verb?

Here:

• брова is the base noun
• бачити is the infinitive verb

So when learning vocabulary from sentences, it is best to store:

• брова = eyebrow
• бачити = to see