で by, using, with その人は？日本語で話していです。That person? They're speaking Japanese. 私は毎日車で会社に行きます。I go to work by car every day. 家でパソコンで仕事する。I work using my computer at home. 東京駅まで車でどれくらい かかりますか。 How long does it take by car to get to Tokyo station? で because, and 今日は雨でスケボーが出来ます。I can't skateboard today because of the rain. そのカフェは本当に静かで良かった。明日も行く。That cafe was really nice and quiet. I'm going to go again tomorrow.