ことだから
(Koto da kara)
knowing X / given that it's X.
Connection rules
- ＋Noun (person) + の + ことだから.
- ＋Personal-knowledge prediction — based on the speaker's familiarity with X.
- ＋Almost always with a subject the speaker knows well: ability, habits, personality.
Examples
1.
時間に厳しい田中さんのことだから、きっと時間通りに来るだろう。
Jikan ni kibishii tanaka san no koto da kara, kitto jikan doori ni kuru daro u.
Knowing Mr. Tanaka, who is strict about time, he'll surely come on time.
「knowing X / given that it's X」
2.
真面目な彼のことだから、ちゃんと宿題をしているはずだ。
Majime na kare no koto da kara, chanto shukudai o shi te iru hazu da.
Knowing he's so diligent, he must be doing his homework properly.
「knowing X / given that it's X」
Practice
Knowing Mr. Tanaka, I'm sure he will arrive earlier than the scheduled time.
___、きっと約束の時間より早く来るはずだ。
Romaji also accepted