muda ni jikan o tsukawanai you ni, yoteihyou o tsukurimasu.

I make a schedule so that I don't waste time.

Breakdown of muda ni jikan o tsukawanai you ni, yoteihyou o tsukurimasu.

• を: direct object particle
• 作つくる: to make
• 時間じかん: time
• 使つかう: to use

Questions & Answers about muda ni jikan o tsukawanai you ni, yoteihyou o tsukurimasu.

What does ように mean in this sentence?

It marks a purpose/aim: so that / in order that. With negatives or potential forms, it often means to avoid / to ensure. So 使わないように = so as not to use.

Why is 無駄 followed by に (無駄に) and not 無駄な?

Na‑adjectives take に to become adverbs when modifying verbs. 無駄に modifies 使う. 無駄な modifies nouns, as in 無駄な時間 (wasted/idle time).

Is 無駄に時間を使わない natural, or should I prefer 時間を無駄にしない?

Both are correct. The collocation 時間を無駄にする／しない is very common and often sounds more idiomatic, so 時間を無駄にしないように is a nice alternative.

What’s the difference between 予定表, 予定, and スケジュール?

• 予定表: a schedule sheet/roster/calendar (a table or document).
• 予定: plans/appointments; often used with 立てる (make plans).
• スケジュール: loanword “schedule,” common in casual and business contexts.

Why are there two を particles?

Each marks the direct object of its own verb in each clause:

• 時間を 使わない
• 予定表を 作ります