これ誰の

whose is this

→ 此れ
phrase Rare #24,431
whose is this の marks possession. A noun may follow, as in “これ誰の本?” (“Whose book is this?”), or be left out when it is clear from context.
JA: これ誰の鍵?
EN: Whose key is this?

これ誰のですか?

Whose is this?

これ誰の車ですか?

Whose car is this?

これ誰のか分かる?

Do you know whose this is?

これ誰の字か分かる?

Can you tell whose handwriting this is?

これ誰の?

Whose is this?

— シカゴ (2002)

これ誰のコップ?

Whose cup is this?

これ誰の本?

Whose book is this?

これ誰の傘?

Whose umbrella is this?