彼らは疲れていたにちがいない。
Sentence Analyzer
English Translation
They must have been tired.
Furigana
Romanji
Karera wa tsukareteita ni chigainai.
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
疲れる
(つかれる)
to get tired; to tire; to be worn out (e.g. of well used objects); to starve
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
近い
(ちかい)
near; close; short (distance)