Нерв несе сигнал.

Ukrainian does not use articles. There is no direct equivalent of the or a/an in ordinary sentences.

So Нерв несе сигнал can mean:

• The nerve carries a signal
• A nerve carries a signal

Which one sounds best in English depends on context.

несе means carries or is carrying.

It comes from the infinitive нести = to carry, to bear, to bring.

In this sentence, it is used in the 3rd person singular present tense:

• я несу = I carry
• ти несеш = you carry
• він/вона/воно несе = he/she/it carries

So Нерв несе сигнал literally has the structure:

• Нерв = nerve
• несе = carries
• сигнал = signal

Because the subject нерв is singular.

In Ukrainian, present-tense verbs agree with the subject in person and number:

• нерв несе = the nerve carries
• нерви несуть = the nerves carry

So несе is used because there is one nerve, not several.

It is in the object form here, but for this kind of noun, the accusative singular looks the same as the nominative singular.

Since сигнал is:

• masculine
• inanimate

its accusative singular is the same as its dictionary form:

• nominative: сигнал
• accusative: сигнал

So in Нерв несе сигнал, сигнал is the direct object, even though its form does not visibly change.

• Нерв is in the nominative singular because it is the subject.
• сигнал is in the accusative singular because it is the direct object.
• несе is the verb.

So the grammar is:

• subject: нерв
• verb: несе
• object: сигнал

Both нерв and сигнал are masculine nouns.

A very common clue is that they end in a consonant in the singular dictionary form:

• нерв
• сигнал

That usually means a noun is masculine in Ukrainian.

The stress is:

• нерв — one syllable
• несе́
• сигна́л

So the sentence is pronounced approximately like:

• nerv ne-SEH syh-NAHL

A rough guide for English speakers:

• н = n
• е = like e in met
• р = rolled or tapped r
• в = v
• с = s
• г in сигнал is not present here, so nothing special there
• и in сигнал is a Ukrainian vowel, somewhat like a short, central i sound, not exactly English ee

No, Ukrainian word order is fairly flexible.

Нерв несе сигнал is a neutral, straightforward order: subject + verb + object.

You may also see other orders for emphasis, such as:

• Сигнал несе нерв
• Несе нерв сигнал

But those can sound marked, poetic, or context-dependent. For a basic sentence, Нерв несе сигнал is the most natural choice.

Yes, нести originally means to carry, but it is also used more broadly.

So несе сигнал can be understood as carries a signal or transmits a signal.

In scientific or technical language, Ukrainian may also use verbs like:

• передає = transmits
• проводить = conducts

But несе сигнал is still understandable and natural as a simple learning example.

It can do either, depending on context.

In many languages, including Ukrainian, a singular noun can be used for a general statement about a whole class:

• Нерв несе сигнал = A nerve carries a signal / The nerve carries a signal

If you want to talk explicitly about nerves in general in the plural, you could say:

• Нерви несуть сигнали = Nerves carry signals

So the singular here can be either specific or generic.

Yes, depending on context.

Ukrainian present tense often covers both:

• carries
• is carrying

So несе does not force a distinction between simple present and present continuous the way English often does.

In a general scientific statement, English usually prefers:

• The nerve carries a signal

In a specific situation, English might prefer:

• The nerve is carrying a signal

It is a complete sentence.

It has everything needed:

• a subject: Нерв
• a verb: несе
• an object: сигнал

It may sound short because it is a simple textbook-style sentence, but grammatically it is fully complete.