彼らは一日中家にいなければならなかった。
Sentence Analyzer
English Translation
They had to stay at home all day.
Furigana
Romanji
Karera wa ichinichijūka ni inakerebanaranakatta.
Words
彼ら
(かれら)
they (usually male); them
は
(は)
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
に
(に)
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
要る
(いる)
to need; to want
Kanji
Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: イチ、 イツ、 ひと-、 ひと.つ
Meanings: one, one radical (no.1)
Readings: ニチ、 ジツ、 ひ、 -び、 -か
Meanings: day, sun, Japan, counter for days
Readings: チュウ、 なか、 うち、 あた.る
Meanings: in, inside, middle, mean, center
Readings: カ、 ケ、 いえ、 や、 うち
Meanings: house, home, family, professional, expert, performer