ですから

ですから
conjunction
therefore (formal)
formalgrammatical
See also: だから (casual form)
1. therefore, so (polite)
The polite form of だから, used to indicate cause and effect in formal speech.
Tomorrow is a holiday. Therefore, I won't go to the office.
The train has stopped. That's why I was late.
ですから、()をつけてください
Therefore, please be careful.
This bus doesn't go to the station. Therefore, please take another bus.
This medicine may make you sleepy. Therefore, please take it before going to bed at night.

ですから is a conjunction meaning "therefore" or "so," used in formal speech.

Formality levels

Usage

Placed at the beginning of a sentence to connect a reason (previous sentence) to its result or conclusion.
Can sometimes express mild frustration when emphasizing a point already made. In casual speech, use だから instead.

Common patterns