Кваліфікація і навички важливі на співбесіді.

In the present tense, Ukrainian usually does not use a separate verb for to be in sentences like this.

So English Qualification and skills are important becomes simply:

Кваліфікація і навички важливі.

The idea of are is understood automatically.

If you wanted the past or future, then forms of бути could appear:

• були важливі = were important
• будуть важливі = will be important

Because the subject is plural in meaning: кваліфікація і навички = qualification and skills.

Even though кваліфікація is singular by itself, it is joined with навички by і (and), so together they form a compound subject. That makes the predicate adjective plural:

• важлива = singular feminine
• важливі = plural

So:

• Кваліфікація важлива. = The qualification is important.
• Навички важливі. = The skills are important.
• Кваліфікація і навички важливі. = Qualification and skills are important.

They are in the nominative case, because they are the subject of the sentence.

Base forms:

• кваліфікація = nominative singular
• навички = nominative plural

This is the form you normally see in dictionaries.

Because after на in this meaning, Ukrainian uses the locative case.

The noun is:

• співбесіда = interview

But after на meaning at / during an interview, it becomes:

• на співбесіді

So:

• співбесіда = nominative
• на співбесіді = locative

This is a very common pattern:

• на роботі = at work
• на уроці = in class / during the lesson
• на зустрічі = at the meeting

Yes, на often means on, but prepositions do not map neatly from English to Ukrainian word-for-word.

With events or situations like interviews, meetings, lessons, and conferences, Ukrainian often uses на where English would use at or in:

• на співбесіді = at the interview
• на зустрічі = at the meeting
• на конференції = at the conference

So this is something you should learn as a normal Ukrainian pattern, not as literal on the interview.

They are related, but not identical.

• кваліфікація usually means qualification, credentials, or overall professional preparation
• навички means skills, especially practical abilities you can use

So кваліфікація is more about what training, education, or professional level you have, while навички are the concrete things you can do.

In many contexts they naturally appear together, just like in English: qualifications and skills.

Yes. Важливі is the plural form of the adjective важливий / важлива / важливе (important).

In this sentence it is used predicatively, meaning it comes after the subject and describes it, like English are important.

So grammatically it is still an adjective, not an adverb.

Compare:

• важливі навички = important skills
  (adjective before a noun)

• навички важливі = skills are important
  (adjective used as the predicate)

Yes. Ukrainian word order is more flexible than English, although the neutral version here is perfectly natural:

Кваліфікація і навички важливі на співбесіді.

You could also say:

На співбесіді важливі кваліфікація і навички.

This gives a bit more emphasis to at the interview.

The meaning stays basically the same, but the focus shifts slightly depending on what you put first.

Yes. І and та can both mean and.

So this is also possible:

Кваліфікація та навички важливі на співбесіді.

Both are correct. Sometimes speakers choose та for style, rhythm, or to avoid awkward sound repetition. In this sentence, і is completely natural.

Because Ukrainian has no articles.

So where English must choose between:

• a qualification
• the qualification
• skills
• the skills

Ukrainian just uses the noun itself, and context tells you how specific it is.

That is why:

• Кваліфікація і навички...

can correspond to different English versions depending on context, such as:

• Qualifications and skills...
• The qualification and skills...
• Qualification and skills...

Usually, no, not for this meaning.

For at an interview, the normal Ukrainian expression is:

на співбесіді

Using у / в співбесіді would sound unnatural in most contexts. If you want to say during the interview, another natural option is:

під час співбесіди

So:

• на співбесіді = at the interview
• під час співбесіди = during the interview

Yes, because the gender still matters when the noun is used by itself or with singular agreement.

Кваліфікація is feminine singular, which is why you would say:

• Кваліфікація важлива.

But in your full sentence, the combined subject is plural, so the adjective becomes plural:

• Кваліфікація і навички важливі.

So gender matters at the noun level, but plural agreement overrides singular gender in the full subject.