～では

About

では is a compound particle that is a combination of the で (locational/method/tool marker) and the は particle (topic marker). では can be used in place of the で particle, often when describing a place, or a general "field/topic" of some kind. では always maintains the main function of the で particle: to mark where or with what method a verb occurs.

E.g. 日本にほんでは、新鮮しんせんなお寿司すしがどこでも食たべられます。 "In Japan, you can eat fresh sushi anywhere."

では can also be used to provide contrast in sentences that make use of で's "tool/method" usage.

E.g. 新幹線しんかんせんでは行いけます。 "You can go by bullet train. (but...)"

Summary

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  では is a combination of the で and は particles

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  では is used to mark a location as both the topic of the sentence and the place where/method with which a verb occurs