彼女は単純な作業に没頭して時間を忘れてしまった

N5 彼女 kanojo she N3 単純 tanjun simple, naive, straightforward N3 作業 sagyou work, operation, task N5 頭 atama head N5 時間 jikan time N3 しまった shimatta darn, too bad, I messed up

N3 彼 hi / kare, kano, ka.no he, that, the N5 女 jo, nyo, nyou / onna, me woman, female, femme N3 単 tan / hitoe simple, one, single N2 純 jun genuine, purity, innocence N4 作 saku, sa / tsuku.ru, tsuku.ri, -zuku.ri make, production, prepare N4 業 gyou, gou / waza business, vocation, arts N1 没 botsu, motsu / obo.reru, shizu.mu, nai drown, sink, hide N3 頭 tou, zu, to / atama, kashira, -gashira, kaburi head, counter for large animals, tête N5 時 ji / toki, -doki time, hour, temps

N4 〜てしまう te shimau Indicates completed action with nuance of regret, surprise, or unexpected result, attaches to the te-form verb N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information