彼はもう家に帰ったでしょう。

N5 彼 kare he N5 もう mou already / more N5 家 ie house / home

N3 彼 hi / kare, kano, ka.no he, that, the N4 家 ka, ke / ie, ya, uchi house, home, family N4 帰 ki / kae.ru, kae.su, oku.ru, totsu.gu homecoming, arrive at, lead to

N4 〜でしょう deshou Indicates polite assumption or likely confirmation, attaches to a sentence, means probably or right N5 〜もう mou Indicates recent completion or change, equivalent to already, shows action completed before now N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜で de Indicates where an action happens, means used, tool, cause, or material depending on context N5 〜も mo Means also, adds another similar item, often replaces particles such as wa ga or o N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information