彼女は大切な人に手紙を書くのが習慣になってる

N5 彼女 kanojo she N5 大切 taisetsu important, precious, valuable N5 人 hito person, people N5 手紙 tegami letter N5 書く kaku to write N4 習慣 shuukan habit, custom, practice

N3 彼 hi / kare, kano, ka.no he, that, the N5 女 jo, nyo, nyou / onna, me woman, female, femme N5 大 dai, tai / oo-, oo.kii, -oo.ini large, big, grand N4 切 setsu, sai / ki.ru, -ki.ru, ki.ri, -ki.ri, -gi.ri, ki.reru, -ki.reru, ki.re, -ki.re, -gi.re cut, cutoff, be sharp N5 人 jin, nin / hito, -ri, -to person, être humain, personne N4 手 shu, zu / te, te-, -te, ta- hand, main, mano N4 紙 shi / kami paper, papier, papel N5 書 sho / ka.ku, -ga.ki, -gaki write, écrire, escritura N4 習 shuu, ju / nara.u, nara.i learn, apprendre, aprender

N5 〜ている te iru Indicates ongoing action, continuous state, repeated habit, or resulting condition depending on context N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information