Explanation
Used to provide a reason or explanation based on one's knowledge about the noun; 'since', 'because', 'knowing'.
Formation
Noun + のことだから
Detailed explanation
The の ことだから (no koto dakara) grammar point is used when giving a reason or explanation based on one’s knowledge or understanding of a particular person or thing. It often implies 'given that this is the kind of person/thing it is'.
Examples
Ryouri ga tokui na kare no koto dakara, oishii ryouri wo tsukutte kureru deshou.
Since he’s good at cooking, he’ll probably make delicious food.
Itsumo chikoku suru kanojo no koto dakara, kyou mo okureru kamoshirenai.
Because she’s always late, she might be late again today.
Yasui mise no koto dakara, takusan ureru hazu da.
Since it’s a cheap store, it should sell a lot.
Dorama suki na kare no koto dakara, saishin no dorama ni tsuite hanasu to ii deshou.
Knowing he likes dramas, it’d be good to talk about the latest shows.
Practice
Grammar content sourced from hanabira.org.