先生が授業を始めました。

N5 先生 sensei teacher N5 授業 jugyou class, lesson N5 始め hajime beginning, start

N5 先 sen / saki, ma.zu before, ahead, previous N5 生 sei, shou / i.kiru, i.kasu, i.keru, u.mareru, uma.reru, u.mare, umare, u.mu, o.u, ha.eru, ha.yasu, ki, nama, nama-, na.ru, na.su, mu.su, -u life, genuine, birth N1 授 ju / sazu.keru, sazu.karu impart, instruct, grant N4 業 gyou, gou / waza business, vocation, arts N4 始 shi / haji.meru, -haji.meru, haji.maru commence, begin, commencer

N4 〜始める hajimeru Indicates the beginning of an action or process, attaches to the verb stem, means start doing 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 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action