を基に details
on the basis of; using N as raw material
おばあちゃんのレシピを基に作ってみたんだ。
obaachan no reshipi o moto ni tsukutte mita n da.
I tried making it based on grandma's recipe. casual
このアンケート結果を基に、新しいメニューを考えた。
kono ankeeto kekka o moto ni, atarashii menyuu o kangaeta.
We came up with a new menu based on this survey's results. neutral
- adnominal
Examples
on the basis of; using N as material — a new thing is built or created from N, which need not be preserved exactly
おばあちゃんのレシピを基に作ってみたんだ。
obaachan no reshipi o moto ni tsukutte mita n da.
I tried making it based on grandma's recipe. casual
このアンケート結果を基に、新しいメニューを考えた。
kono ankeeto kekka o moto ni, atarashii menyuu o kangaeta.
We came up with a new menu based on this survey's results. neutral
本プランは、お客様からのご意見を基に改定いたしました。
hon puran wa, okyakusama kara no go iken o moto ni kaitei itashimashita.
This plan has been revised based on feedback from our customers. formal
Formation
{N}をもとにattaches to noun
Variant notes
- を基にした — modifies a following noun directly — 顧客の声を基にした新商品 "a new product based on customer feedback"; を基に cannot sit directly before a noun that way.
Related patterns
Similar
Both name a source that grounds what follows, but 基づいて demands the result stay FAITHFUL and consistent with the source — a ruling grounded in evidence, a film sticking close to real events (実話に基づく映画) — while 基に treats the source as raw material free to be reshaped (経験を基に小説を書く, changing names and events); 基に's product need not match its source the way 基づいて's must.
Both are を…に frames naming what an action is grounded on, but を頼りに keeps the literal sense of 頼る "to depend on" — N is a guide or support someone leans on when they'd otherwise be lost or unsure (地図を頼りに歩く "walk relying on a map", 記憶を頼りに "relying on memory"), while をもとに treats N as raw material something is built, written, or decided FROM, with no dependence or uncertainty implied (経験をもとに小説を書く) — swap them and "relying on the map" turns into "using the map as source material."
Lookalikes
Both are built on the noun もと and both surface in "under/based on X" translations, but they take different particles for different jobs — のもとで keeps N as a fixed authority or condition something operates WITHIN (先生のもとで学ぶ "study under a teacher"), while をもとに treats N as raw material something is actively BUILT or DECIDED FROM (経験をもとに小説を書く "write a novel based on one's experience") — swapping の…で for を…に turns "studying under a teacher" into something closer to "studying using a teacher as raw material."