彼は来たかと思うとすぐ帰ってしまった

N5 彼 kare he N4 思う omou think, feel, suppose

N3 彼 hi / kare, kano, ka.no he, that, the N5 来 rai, tai / ku.ru, kita.ru, kita.su, ki.tasu, ki.taru, ki, ko come, due, next N4 思 shi / omo.u, omoera.ku, obo.su think, penser, pensar N4 帰 ki / kae.ru, kae.su, oku.ru, totsu.gu homecoming, arrive at, lead to

N4 〜てしまう te shimau Indicates completed action with nuance of regret, surprise, or unexpected result, attaches to the te-form verb N5 〜と思う to omou Indicates speaker thought opinion or assumption, connects clause with mental expression N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements N5 〜か ka Marks a question, alternative, or uncertainty, appears at the sentence end or between options N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information