誰かが傘を置き忘れた。

Sentence Analyzer

置き忘れた

English Translation

Somebody left his umbrella behind.

Furigana

(だれ)かが(かさ)()(わす)れた。

Romanji

Dare ka ga kasa o okiwasureta.

Words

(だれ、たれ、た)
who
()
indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
(かさ)
umbrella; parasol
()
indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
置き忘れる (おきわすれる)
to leave behind; to misplace; to forget

Kanji

Readings: スイ、 だれ、 たれ、 た
Meanings: who, someone, somebody
Readings: サン、 かさ
Meaning: umbrella
Readings: チ、 お.く、 -お.き
Meanings: placement, put, set, deposit, leave behind, keep, employ, pawn
Readings: ボウ、 わす.れる
Meaning: forget