警察が追っていたのは替え玉で、その間に真犯人を逃してしまった。

Sentence Analyzer

English Translation

The police followed a red herring while they let the true criminal escape.

Furigana

警察(けいさつ)が追(お)っていたのは替(か)え玉(だま)で、その間(かん)に真犯人(しんはんにん)を逃(のが)してしまった。

Romanji

Keisatsu ga otteita no wa kaedama de, sonokan ni shinhannin o nogashiteshimatta.

Words

警察 (けいさつ)

police; police officer; police station

が (が)

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

追う (おう)

to chase; to run after; to pursue; to follow (i.e. a set order, a trend); to drive out; to oust; to expel; to drive (i.e. a herd); (in passive voice) to be pressed (for time, etc.)

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

は (は)

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

替え玉 (かえだま)

substitute; double; second serving (ball) of noodles (to add to previously purchased ramen)

で (で、にて)

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

その間 (そのあいだ、そのかん)

in the meanwhile; during the time

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

真犯人 (しんはんにん)

the real criminal; true culprit

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.

逃す (のがす)

to miss; to lose; to give away; to let go; to set free; to let get away; to fail to ...