私はボブがいつ来日したのかを知らなかった。
Sentence Analyzer
English Translation
I didn't know when Bob had come to Japan.
Furigana
Romanji
Watashi wa Bobu ga i tsu rainichishita no ka o shiranakatta.
Words
私
(わたし、わたくし)
I; me; private affairs; personal matter; secrecy; selfishness
は
(は)
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
ボブ
(ボブ)
bob
が
(が)
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)
つ
(つ)
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
の
(の)
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
か
(か)
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
を
(を)
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.
知る
(しる)
to be aware of; to know; to be conscious of; to cognize; to cognise; to notice; to feel; to understand; to comprehend; to grasp; to remember; to be acquainted with (a procedure); to experience; to go through; to learn; to be acquainted with (a person); to get to know; to concern