彼、この問題は厄介だと彼は言った

N5 彼 kare he N5 この kono this N5 問題 mondai problem, question N3 厄介 yakkai trouble, burden, nuisance N1 だと dato if it's the case

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 N1 厄 yaku unlucky, misfortune, bad luck N2 介 kai jammed in, shellfish, mediate N4 言 gen, gon / i.u, koto say, word, dire

N5 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements 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