彼らがそれを成し遂げたのかどうかは明らかではなかった。

Sentence Analyzer

彼ら が それ を 成し遂げた の か どう か は 明らか で は なかった 。

English Translation

It was not clear whether they had accomplished it or not.

Furigana

彼(かれ)らがそれを成(な)し遂(と)げたのかどうかは明(あき)らかではなかった。

Romanji

Karera ga sore o nashitogeta no ka dō ka wa akiraka de wa nakatta.

Words

彼ら (かれら)

they (usually male); them

が (が)

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

其れ (それ)

that (indicating an item or person near the listener, the action of the listener, or something on their mind); it; that time; then; there (indicating a place near the listener); you

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.

成し遂げる (なしとげる)

to accomplish; to finish; to fulfill

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

如何 (どう、いかが、いか)

how; in what way; how about

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

明らか (あきらか)

obvious; evident; clear; plain

だ (だ)

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

無い (ない)

nonexistent; not being (there); unpossessed; unowned; not had; unique; indicates negation, inexperience, unnecessariness or impossibility; not ...; to not be...; to have not ...

Kanji

彼

Readings: ヒ、 かれ、 かの、 か.の

Meanings: he, that, the

成

Readings: セイ、 ジョウ、 な.る、 な.す、 -な.す

Meanings: turn into, become, get, grow, elapse, reach

遂

Readings: スイ、 と.げる、 つい.に

Meanings: consummate, accomplish, attain, commit (suicide)

明

Readings: メイ、 ミョウ、 ミン、 あ.かり、 あか.るい、 あか.るむ、 あか.らむ、 あき.らか、 あ.ける、 -あ.け、 あ.く、 あ.くる、 あ.かす

Meanings: bright, light