彼をそんなに悩ませているのが一体何なのか誰も知らない。

Sentence Analyzer

English Translation

Nobody knows what it is that has been bothering him so much.

Furigana

彼(かれ)をそんなに悩(なや)ませているのが一体(いったい)何(なに)なのか誰(だれ)も知(し)らない。

Romanji

Kare o sonnani nayamaseteiru no ga ittai nani na no ka dare mo shiranai.

Words

彼 (かれ)

he; him; his; boyfriend

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.

そんなに (そんなに)

so much; so; like that

悩む (なやむ)

to be worried; to be troubled

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

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

一体 (いったい)

...the heck (e.g. "what the heck?"); ...in the world (e.g. "why in the world?"); ...on earth (e.g. "who on earth?"); one object; one body; unity; one form; one style; one Buddhist image (or carving, etc.); generally; in general

何 (なに、なん)

what; how many; you-know-what; that; whatsit; what's the expression; what do you call them; what?; hey!

だ (だ)

be; is; indicates past or completed action; indicates light imperative

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

誰 (だれ、たれ、た)

who

も (も)

too; also; in addition; as well; (not) either (in a negative sentence); both A and B; A as well as B; neither A nor B (in a negative sentence); even; as much as; as many as; as far as; as long as; no less than; no fewer than; even if; even though; although; in spite of; further; more; again; another; the other

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