GRAMMAR DETAIL
〜ことだし
Adds a circumstance already known to the speaker and listener as a reason leading to a judgment or suggestion.
Examples
会議も終了したことだし、帰宅しよう。
Now that the meeting is over, let us go home.
Words used
雨もやんだことだし、出発しよう。
Now that the rain has stopped, let us set out.
Words used
天気も良いことだし、少し遠くまで歩こう。
Since the weather is nice, let us walk a little farther.
Words used
Study notes
1. Origins, structure, and basic meaning
- Structure:
ことだしpresents a shared circumstance as one reason leading to a judgment or suggestion. - Basic usage:
雨もやんだことだし、出発しよう。uses the rain having stopped as grounds for suggesting departure.
2. Common pitfalls and similar expressions
- A current circumstance versus a completed change
天気も良いことだしgives the present weather as a reason, while雨もやんだことだしgives the change of the rain stopping. Choose the form beforeことだしfor the circumstance's timing rather than always making it past.
- Adding a reason through mo and shi
- In
会議も終了したことだし,もand the finalしpresent the meeting's end as one of several relevant circumstances.会議が終了したからpresents that fact as a direct reason.
- In