授業の最中に電話が鳴りました。

N5 授業 jugyou class, lesson N5 中 naka inside / middle N5 話 hanashi talk, story, speech

N1 授 ju / sazu.keru, sazu.karu impart, instruct, grant N4 業 gyou, gou / waza business, vocation, arts N3 最 sai, shu / motto.mo, tsuma utmost, most, extreme N5 中 chuu / naka, uchi, ata.ru in, inside, middle N5 電 den electricity, électricité, electricidad N5 話 wa / hana.su, hanashi tale, talk, parler N3 鳴 mei / na.ku, na.ru, na.rasu chirp, cry, bark

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 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences 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