Autor vytvořil nové dílo.

Autor is the subject of the sentence, so it is in the nominative singular.

• autor = author
• It is a masculine animate noun.
• In this sentence, it means the author in a general sense. Czech does not use articles like a or the, so autor can mean either depending on context.

Vytvořil is the past tense form of vytvořit.

It tells us:

• the action happened in the past
• the subject was masculine singular

In Czech past tense, the verb often agrees with the subject in gender and number:

• autor vytvořil = a male author created
• autorka vytvořila = a female author created
• autoři vytvořili = authors created

So the ending -il matches a masculine singular subject.

The infinitive is vytvořit.

This verb is perfective, which means it presents the action as completed or as a single whole event.

So Autor vytvořil nové dílo suggests:

• the author finished creating it
• the creation is seen as a completed result

The imperfective partner is usually vytvářet:

• vytvářel = was creating / used to create
• vytvořil = created, completed

This is a very important Czech distinction.

Because nové has to agree with dílo.

Dílo is:

• neuter
• singular
• here functioning as the direct object

So the adjective nový changes to nové to match it:

• nový autor = new author (masculine)
• nová kniha = new book (feminine)
• nové dílo = new work (neuter)

This is standard adjective agreement in Czech.

It is the accusative singular, because it is the direct object of the verb vytvořil.

The author created what? → nové dílo

A useful thing to notice: for many neuter singular nouns, the nominative and accusative forms are the same.

So:

• nominative: dílo
• accusative: dílo

The function changes, even though the form does not.

Not always. Dílo is a broad word.

Depending on context, it can mean:

• work
• piece of work
• artistic work
• creation
• opus

In this sentence, nové dílo probably means something like:

• a new literary work
• a new artistic work
• a newly created piece

So it is broader than just everyday work in the sense of employment.

Yes. Czech word order is fairly flexible because case endings show grammatical roles.

The neutral order here is:

• Autor vytvořil nové dílo.

But you can also say:

• Nové dílo vytvořil autor.
• Autor nové dílo vytvořil.

These versions are still grammatical, but the emphasis changes.

For example:

• Nové dílo vytvořil autor. may emphasize the new work
• Autor nové dílo vytvořil. may sound a bit more marked, depending on context

So Czech word order often reflects information structure and emphasis, not just grammar.

Czech has no articles.

So autor can mean:

• an author
• the author

And nové dílo can mean:

• a new work
• the new work

You understand which meaning is intended from:

• context
• word order
• what has already been mentioned in the conversation or text

This is a major difference from English.

A rough English-friendly guide is:

vytvořil ≈ VIHT-vo-rzhil

A few notes:

• vy- sounds roughly like vih-
• tvo is like tvo with a clear t
• ř is the famous Czech sound, something like a mix of r and zh
• the stress in Czech is usually on the first syllable: VYT-vo-řil

The hardest part for most learners is ř.

Yes, if you specifically mean a writer.

Compare:

• autor = author, creator
• spisovatel = writer, novelist, literary author

Autor is a bit broader and can be used for someone who created a work in general. Spisovatel is more specifically a writer.

So the best choice depends on context.