ボブがいつ来日したか分からない。

Sentence Analyzer

ぼぶ 来日した 分からない

English Translation

I don't know when Bob came to Japan.

Furigana

ボブがいつ来日(らいにち)したか()からない。

Romanji

Bobu ga i tsu rainichishita ka wakaranai.

Words

ボブ (ボブ)
bob
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
居る (いる)
to be (of animate objects); to exist; to stay; (after the -te form of a verb) verb indicating continuing action or state (i.e. to be ..ing, to have been ..ing)
()
indicates two contrasting actions; indicates possessive (often found in place names and compound words)
来日 (らいにち)
arrival in Japan; coming to Japan; visit to Japan
()
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
分かる (わかる)
to understand; to comprehend; to grasp; to see; to get; to follow; to become clear; to be known; to be discovered; to be realized; to be realised; to be found out

Kanji

Readings: ライ、 タイ、 く.る、 きた.る、 きた.す、 き.たす、 き.たる、 き、 こ
Meanings: come, due, next, cause, become
Readings: ニチ、 ジツ、 ひ、 -び、 -か
Meanings: day, sun, Japan, counter for days
Readings: ブン、 フン、 ブ、 わ.ける、 わ.け、 わ.かれる、 わ.かる、 わ.かつ
Meanings: part, minute of time, segment, share, degree, one's lot, duty, understand, know, rate, 1%, chances, shaku/100