春になると東京中で桜が満開になる

N5 春 haru spring N5 なる naru become, turn into, happen N5 東 higashi east N5 中 naka inside / middle N3 桜 sakura cherry blossom, cherry tree

N4 春 shun / haru springtime, spring (season), printemps N5 東 tou / higashi east, Est, Este N4 京 kyou, kei, kin / miyako capital, 10**16, capitale N5 中 chuu / naka, uchi, ata.ru in, inside, middle N1 桜 ou, you / sakura cherry, cerisier du Japon, cerezo N3 満 man, ban / mi.chiru, mi.tsu, mi.tasu full, fullness, enough N4 開 kai / hira.ku, hira.ki, -bira.ki, hira.keru, a.ku, a.keru open, unfold, unseal

N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences 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 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements