で on a vehicle says how you travel: 電車で = “by train”.
でんしゃで かいしゃへ いきます。
I go to work by train.
で marks the means/method — here a vehicle. To say “on foot”, use 歩いて (no で).
で covers where an action happens, what it is done with, and what it is made of — several jobs that share one syllable. Contrast it with に, which marks where something exists.
Also known asde particleで particlede vs niplace of action
で on a vehicle says how you travel: 電車で = “by train”.
でんしゃで かいしゃへ いきます。
I go to work by train.
で marks the means/method — here a vehicle. To say “on foot”, use 歩いて (no で).
In the textbooksMinna I, lesson 5Genki I, lesson 10
で marks where an action happens: レストランで 食べます = “eat at a restaurant”.
レストランで ひるごはんを たべます。
I eat lunch at a restaurant.
で marks the location where an action takes place. (Compare に in lesson 10, which marks where something simply exists.)
In the textbooksMinna I, lesson 6Genki I, lesson 3
で marks the tool or method used: はしで 食べます = “eat with chopsticks”.
にほんごで レポートを かきます。
I write the report in Japanese.
This で marks the instrument or means — a tool (はしで), a language (日本語で), or a method. Same particle as transport で in lesson 5.
In the textbooksMinna I, lesson 7Genki I, lesson 10