彼は問題の答えを得るのに苦労した

N5 彼 kare he N5 問題 mondai problem, question N5 答え kotae answer N3 得る eru obtain, get, gain, acquire N3 苦労 kurou hardship, trouble, effort

N3 彼 hi / kare, kano, ka.no he, that, the N4 問 mon / to.u, to.i, ton question, ask, problem N4 題 dai topic, subject, sujet N4 答 tou / kota.eru, kota.e solution, answer, solution N3 得 toku / e.ru, u.ru gain, get, find N3 苦 ku / kuru.shii, -guru.shii, kuru.shimu, kuru.shimeru, niga.i, niga.ru suffering, trial, worry N3 労 rou / rou.suru, itawa.ru, ita.zuki, negira, tsuka.reru, negira.u labor, thank for, reward for

N4 〜のに noni Indicates unexpected contrast, connects two opposing ideas, means although, despite, even though N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also 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