彼は慢性的な睡眠不足に悩んでる

N5 彼 kare he N3 性 sei sex, gender, nature, quality N3 睡眠 suimin sleep, rest N3 不足 fusoku insufficiency, shortage

N3 彼 hi / kare, kano, ka.no he, that, the N1 慢 man ridicule, laziness, vanité N3 性 sei, shou / saga sex, gender, nature N3 的 teki / mato bull's eye, mark, target N1 睡 sui / nemu.ru, nemu.i drowsy, sleep, die N3 眠 min / nemu.ru, nemu.i sleep, die, sleepy N4 不 fu, bu negative, non-, bad N4 足 soku / ashi, ta.riru, ta.ru, ta.su leg, foot, be sufficient N2 悩 nou / naya.mu, naya.masu, naya.mashii, nayami trouble, worry, in pain

N4 〜ので node Indicates cause or reason in a softer way than kara, connects two clauses, often used in polite explanations 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 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information