この研究の主な対象は若者です

N5 この kono this N4 研究 kenkyuu research, study, investigation N1 主 nushi owner, master, god N3 対象 taishou target, object, subject N3 者 mono person, someone, individual

N4 研 ken / to.gu polish, study of, sharpen N4 究 kyuu, ku / kiwa.meru research, study, recherche N4 主 shu, su, shuu / nushi, omo, aruji lord, chief, master N3 対 tai, tsui / aite, kota.eru, soro.i, tsurea.i, nara.bu, muka.u vis-a-vis, opposite, even N2 象 shou, zou / katado.ru elephant, pattern after, imitate N3 若 jaku, nyaku, nya / waka.i, waka-, mo.shikuwa, mo.shi, mo.shikuha, goto.shi young, if, perhaps N4 者 sha / mono someone, person, personne

N5 〜です desu Used at the end of a sentence, polite affirmative form, means to be depending on context N5 〜で de Indicates where an action happens, means used, tool, cause, or material depending on context 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