黒人はバスの後部に座るか、もしも後部がつまってしまえば立たねばならなかった。

Sentence Analyzer

黒人 ばす 後部 座る もしも 後部 つまってしまえば 立たねばならなかった

English Translation

Black people had to sit in the back of the bus, or stand if the back was full.

Furigana

黒人(こくじん)はバスの後部(こうぶ)(すわ)るか、もしも後部(こうぶ)がつまってしまえば()たねばならなかった。

Romanji

Kokujin wa basu no kōbu ni suwaru ka, moshimo kōbu ga tsumatteshimaeba tatanebanaranakatta.

Words

黒人 (こくじん)
black person; woman in the nightlife business; demimondaine; geisha and prostitutes
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
バス (バス)
bus; bath; bass
()
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
後部 (こうぶ)
rear; stern
()
at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
座る (すわる)
to sit; to squat; to assume (a position); to hold steady; to hold still
()
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
若しも (もしも)
if
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
詰まる (つまる)
to be packed (with); to be full (space, schedule, etc.); to be blocked (road, pipe, etc.); to be clogged; to be plugged up; to shorten (width, interval, etc.); to shrink (shirt, word form, etc.); to narrow; to be at a loss; to be hard pressed; to end up; to be settled; to become a geminate consonant; to hit the ball near the handle of the bat
立つ (たつ)
to stand; to rise; to stand up; to find oneself (e.g. in a difficult position); to depart (on a plane, train, etc.)

Kanji

Readings: コク、 くろ、 くろ.ずむ、 くろ.い
Meaning: black
Readings: ジン、 ニン、 ひと、 -り、 -と
Meaning: person
Readings: ゴ、 コウ、 のち、 うし.ろ、 うしろ、 あと、 おく.れる
Meanings: behind, back, later
Readings: ブ、 -べ
Meanings: section, bureau, dept, class, copy, part, portion, counter for copies of a newspaper or magazine
Readings: ザ、 すわ.る
Meanings: squat, seat, cushion, gathering, sit
Readings: リツ、 リュウ、 リットル、 た.つ、 -た.つ、 た.ち-、 た.てる、 -た.てる、 た.て-、 たて-、 -た.て、 -だ.て、 -だ.てる
Meanings: stand up, rise, set up, erect