日本の歴史について勉強しています

N4 日 hi day, sun, sunlight N5 本 hon book N4 歴史 rekishi history N5 勉強しています benkyou shite imasu am studying

N5 日 nichi, jitsu / hi, -bi, -ka day, sun, Japan N5 本 hon / moto book, present, main N2 歴 reki, rekki curriculum, continuation, passage of time N2 史 shi history, chronicle, histoire N4 勉 ben / tsuto.meru exertion, endeavour, encourage N4 強 kyou, gou / tsuyo.i, tsuyo.maru, tsuyo.meru, shi.iru, kowa.i strong, fort, fuerte

N4 〜について ni tsuite Indicates the topic or subject being discussed, attaches to a noun, means about or regarding N5 〜ている te iru Indicates ongoing action, continuous state, repeated habit, or resulting condition depending on context N5 〜ます masu Used at the end of verbs, polite present or future form, makes the sentence more polite N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also 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