Приглашённый докладчик готовит устный доклад.

Приглашённый is a past passive participle used like an adjective.

Here it means invited and describes докладчик.

Why it looks this way:

• it comes from the verb пригласить = to invite
• it agrees with докладчик in:
  • gender: masculine
  • number: singular
  • case: nominative

So приглашённый докладчик is literally the invited speaker/presenter.

Yes. In real Russian texts, ё is often written as е, so you may see приглашенный.

But the pronunciation is still приглашённый, with yo in the stressed syllable.

For learners, ё is very helpful because it shows:

• the correct vowel sound
• the stress

So this sentence is learner-friendly spelling.

• Приглашённый докладчик is in the nominative case because it is the subject.
• Устный доклад is in the accusative case because it is the direct object of готовит.

A detail that often confuses learners:

доклад is a masculine inanimate noun, so its accusative singular looks exactly like its nominative singular.

That is why you see:

• nominative: доклад
• accusative: доклад

If it were an animate masculine noun, the accusative would look different.

Because готовить and готовиться are different verbs.

• готовить что-то = to prepare something
• готовиться к чему-то = to prepare for something / get ready for something

In this sentence, the speaker is preparing an actual presentation, so Russian uses:

• готовит устный доклад = is preparing an oral presentation

Compare:

• Докладчик готовит доклад = The speaker is preparing a presentation.
• Докладчик готовится к докладу = The speaker is preparing for the presentation.

Готовит is:

• present tense
• imperfective aspect
• 3rd person singular

Imperfective here can mean:

• is preparing (process right now or around now)
• prepares (more general or habitual, depending on context)

If you wanted a perfective idea such as will prepare / will have prepared, you would use a different verb, for example подготовит.

So:

• готовит = is preparing / prepares
• подготовит = will prepare, will get it prepared

They are related words, but they mean different things:

• докладчик = the person who gives the report/presentation
• доклад = the report/presentation itself

So the sentence is not repetitive in a strange way. It is saying:

• the speaker/presenter is preparing a presentation/report

This kind of related-word pairing is normal in Russian.

Often доклад does suggest a spoken presentation, but устный adds clarity: it specifically means oral or spoken.

So устный доклад contrasts with something like:

• письменный доклад = a written report

In context, устный may be there:

• to emphasize that it is spoken
• to contrast it with a written version
• simply because that is the style of the sentence

Yes, in many contexts it can be translated naturally as guest speaker.

But literally it means invited speaker/presenter.

The nuance is:

• приглашённый focuses on the fact that the person was invited
• guest speaker is often the most natural English equivalent in event or conference contexts

So depending on context:

• invited speaker
• guest speaker
• invited presenter

could all work.

No, Russian word order is relatively flexible.

The sentence as given:

• Приглашённый докладчик готовит устный доклад.

is a neutral, natural order:

• subject → verb → object

But you could change the order for emphasis, for example:

• Устный доклад готовит приглашённый докладчик.
• Готовит устный доклад приглашённый докладчик.

These alternatives are grammatical, but they sound more marked and depend on context.

For learners, the given order is the safest and most neutral one.

Russian modifiers agree with the nouns they describe.

So:

• приглашённый agrees with докладчик
• устный agrees with доклад

Both noun phrases are:

• masculine
• singular

The difference is case:

• приглашённый докладчик = nominative
• устный доклад = accusative

But because доклад is masculine inanimate, the accusative looks the same as the nominative, so the form устный stays the same too.

A rough pronunciation guide with stress:

• приглашённый = pri-gla-SHON-nyy
• докладчик = da-KLAD-chik
• готовит = ga-TO-vit
• устный = US-tnyy
• доклад = da-KLAT

A smoother rough pronunciation of the whole sentence:

pri-gla-SHON-nyy da-KLAD-chik ga-TO-vit US-tnyy da-KLAT

A few useful notes:

• ё is always stressed
• final voiced consonants often sound devoiced, so доклад sounds closer to доклат at the end
• ч in докладчик is like ch in church

Russian has no articles.

So Приглашённый докладчик готовит устный доклад could mean, depending on context:

• The invited speaker is preparing an oral presentation
• An invited speaker is preparing an oral presentation

Context tells you whether English needs the, a, or sometimes no article at all.