watashi wa raishuu kenkyuu no kekka o happyoushimasu.

topic particle

Breakdown of watashi wa raishuu kenkyuu no kekka o happyoushimasu.

• 私わたし: I
• を: direct object particle
• の: possessive case particle

Questions & Answers about watashi wa raishuu kenkyuu no kekka o happyoushimasu.

Why is は used after 私 instead of が?

は marks 私 as the topic of the sentence: As for me, ...

So 私は来週研究の結果を発表します presents I as the person being talked about.

If you used が instead, it would put more focus on I as the subject, often with a nuance like I am the one who will present it. In many simple statements like this, は is the more neutral and natural choice.

Why is there no particle after 来週? Why not 来週に?

Many time expressions in Japanese can be used without any particle, and 来週 is one of them.

So:

• 来週発表します = I will present it next week
• 今日行きます = I’m going today
• 明日会います = I’ll meet (someone) tomorrow

Using に after 来週 is usually unnatural here.
A good rule of thumb is that common time words like 今日, 明日, 昨日, 来週, 先月, 去年 often do not take に.

What does 研究の結果 mean grammatically?