Breakdown of syuumatu ni ibento ni sankasimasu.

Questions & Answers about syuumatu ni ibento ni sankasimasu.
Japanese often omits the subject when it’s clear from context. Here it’s assumed you’re talking about yourself. If you want to be explicit or contrast, you can add 私は at the beginning:
私は週末にイベントに参加します。
Japanese word order is fairly flexible, but the typical hierarchy is:
- Topic/time expressions
- Location/target expressions
- Verb phrases
Hence 週末にイベントに参加します is the most natural. Saying イベントに週末に参加します is grammatically possible but sounds awkward—time usually comes first.
行きます simply means “go,” focusing on movement: “I’ll go to the event.”
参加します means “participate” or “attend,” emphasizing joining in the activities. Use 参加します when you want to stress your involvement.
Add 予定 (“plan”) after the dictionary form:
週末にイベントに参加する予定です。
This literally means “I have plans to participate in an event on the weekend.”
Casual: drop ます and use the dictionary form—週末にイベントに参加するよ。
Polite/honorific: you can soften it further—週末にイベントに参加させていただきます。
週末に marks “when” you do the action.
週末は makes “weekend” the topic, implying you’ll talk about what happens on weekends in general.
- 週末にイベントに参加します。 “I will attend an event this weekend.”
- 週末はイベントに参加します。 “As for weekends, I attend events (perhaps regularly or as a habit).”