彼らは3人横に並んで歩いていた。

Sentence Analyzer

彼ら 並んで 歩いていた

English Translation

They were walking three abreast.

Furigana

(かれ)らは3(にん)(よこ)(なら)んで(ある)いていた。

Romanji

Karera wa san nin yoko ni narande aruiteita.

Words

彼ら (かれら)
they (usually male); them
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
(さん、み)
three; tri-
(じん)
-ian (e.g. Italian); -ite (e.g. Tokyoite); indicates nationality, race, origin, etc.; -er (e.g. performer, etc.); person working with ...; indicates expertise (in a certain field); (usu. in compound words) man; person; people
(よこ)
horizontal (as opposed to vertical); lying down; side-to-side (as opposed to front-to-back); width; breadth; side (of a box, etc.); beside; aside; next to; unconnected
()
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
並ぶ (ならぶ)
to line up; to stand in a line; to rival; to match; to equal
歩く (あるく)
to walk

Kanji

Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: ジン、 ニン、 ひと、 -り、 -と
Meaning: person
Readings: オウ、 よこ
Meanings: sideways, side, horizontal, width, woof, unreasonable, perverse
Readings: ヘイ、 ホウ、 な.み、 なみ、 なら.べる、 なら.ぶ、 なら.びに
Meanings: row, and, besides, as well as, line up, rank with, rival, equal
Readings: ホ、 ブ、 フ、 ある.く、 あゆ.む
Meanings: walk, counter for steps