isya ha kekka wo bunsekisita.

It is read:

いしゃ は けっか を ぶんせきした。

Word by word:

• 医者 = いしゃ
• は = written ha but pronounced wa here
• 結果 = けっか
• を = usually pronounced o
• 分析した = ぶんせきした

This is one of the most common beginner questions.

The particle は is normally pronounced wa when it marks the topic of the sentence.

So in:

• 医者は = As for the doctor, ... / The doctor ...

Even though it is written with the kana は, the pronunciation is wa.

In this sentence, は marks 医者 as the topic.

So 医者は tells us that the sentence is talking about the doctor.

A useful way to think of it is:

• 医者は = As for the doctor, ...

In natural English, you usually would not translate は directly every time. It mainly sets up what the sentence is about.

を marks the direct object of the verb, meaning the thing that receives the action.

Here:

• 結果を = the result(s) as the thing being analyzed

So:

• 医者は 結果を 分析した = The doctor analyzed the results.

A simple pattern is:

• A は B を verb
• A does the action
• B receives the action

Yes, 分析した functions here as the verb part of the sentence.

It comes from:

• 分析 = analysis
• する = to do

Together, 分析する means to analyze.

Then する changes to the past tense した:

• 分析する = to analyze
• 分析した = analyzed

This type is called a suru-verb. Many Japanese words of Chinese origin work this way.

Japanese normally puts the main verb at the end.

So this pattern is very common:

• Topic / subject + object + verb

In this sentence:

• 医者は = topic
• 結果を = object
• 分析した = verb

English usually puts the verb earlier:

• The doctor analyzed the results.

Japanese usually saves it until the end.

Both are possible, but they have different levels of politeness.

• 分析した = plain style
• 分析しました = polite style

The sentence you were given is in plain style, which is common in:

• dictionaries
• casual speech
• narration
• textbook example sentences

If you wanted to say it politely, you could say:

• 医者は結果を分析しました。

This is a subtle but important point.

は marks the topic, not necessarily the grammatical subject in every situation. However, in a simple sentence like this, 医者 is both:

• the topic
• and the one performing the action

So for practical beginner purposes, you can understand 医者は here as the doctor doing the analyzing.

The main thing to remember is:

• は = topic marker
• が = subject marker in a more specific grammatical sense

At an early stage, it is enough to know that 医者は sets up the doctor as what the sentence is about.

Japanese usually does not mark articles like English does.

So:

• 医者 can mean a doctor, the doctor, or doctors depending on context
• 結果 can mean a result, the result, or results depending on context

English translations add the, a, or results because English requires them more often.

In this sentence, the intended meaning is clear from context, so Japanese does not need to mark those things explicitly.

The basic order here is very natural:

• 医者は 結果を 分析した。

But Japanese word order is somewhat flexible as long as the particles make the roles clear.

For example, this is also possible:

• 結果を医者は分析した。

That can sound more marked, as if emphasizing the results first.

Even if the order changes, the particles still show the roles:

• は tells you the topic
• を tells you the object

So Japanese relies a lot on particles, not only on word order.

Yes. Japanese often omits information that is clear from context.

So if everyone already knows you are talking about the doctor, you could simply say:

• 結果を分析した。

That would mean something like:

• [He/She/The doctor] analyzed the results.

Japanese frequently leaves out subjects and topics when they are understood, much more than English does.