彼、一人一人に丁寧に挨拶した

N5 彼 kare he N3 一人一人 hitorihitori one by one, each N4 丁寧 teinei polite, courteous, careful N4 挨拶 aisatsu greeting, salutation

N3 彼 hi / kare, kano, ka.no he, that, the N5 一 ichi, itsu / hito-, hito.tsu one, one radical (no.1), un N5 人 jin, nin / hito, -ri, -to person, être humain, personne N1 丁 chou, tei, chin, tou, chi / hinoto street, ward, town N1 寧 nei / mushi.ro rather, preferably, peaceful N1 挨 ai / hira.ku approach, draw near, push open N1 拶 satsu / sema.ru be imminent, draw close, acercarse

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