頻度や手段、道具を表す。

I usually watch TV at night.
I exercise every other day.


with & by

with : ~と共に/ ~を手にして(道具)

by : ~のそば/ ~を使って (手段)

We should go by taxi. タクシーで、いこうよ。

Dont fill in the form with a pencil.

It is difficult to catch a fish with your hands.
cf. by hands 手作業で

He was sitting with his eyes closed. 付帯状況


スキットから
These pictures were taken with a very old camera.

The picture was sent by e mail.
その写真は、e メイルで、送られてきた。

Stop speaking with your mouth full.

Dont leave with your job unfinished.
仕事が終わってないのに帰るな。