kono keikaku ni wa shien ga hitsuyou desu.

topic particle

Breakdown of kono keikaku ni wa shien ga hitsuyou desu.

• です: to be
• が: subject particle
• この: this

Questions & Answers about kono keikaku ni wa shien ga hitsuyou desu.

Why is the sentence structured like this plan + for/as for + support + is necessary instead of using a verb meaning need?

Japanese often expresses need with the pattern:

A には B が 必要です

This literally means B is necessary for A.

So:

• この計画 = this plan
• には = for / as for
• 支援が = support is the thing being talked about
• 必要です = is necessary

That is why the sentence feels more like Support is necessary for this plan than a direct word-for-word version of This plan needs support.

Why does 計画 take には?

には is actually two particles combined:

• に marks the target or thing something is necessary for
• は marks that whole phrase as the topic

So この計画には means something like:

• for this plan
• or as for this plan

This is a very common pattern with 必要.

What does the は in には add? Can I leave it out?