彼の説明はただの推測にすぎないと思う

N5 彼 kare he N4 説明 setsumei explanation, clarification N3 ただ tada free, only, merely N1 推測 suisoku guess, conjecture N5 ない nai there isn't, doesn't have N4 思う omou think, feel, suppose

N3 彼 hi / kare, kano, ka.no he, that, the N3 説 setsu, zei / to.ku opinion, theory, explanation N4 明 mei, myou, min / a.kari, aka.rui, aka.rumu, aka.ramu, aki.raka, a.keru, -a.ke, a.ku, a.kuru, a.kasu bright, light, clair N1 推 sui / o.su conjecture, infer, guess N2 測 soku / haka.ru fathom, plan, scheme N4 思 shi / omo.u, omoera.ku, obo.su think, penser, pensar

N3 〜にすぎない ni suginai Indicates limitation or minimization, attaches to noun verb or adjective, means only or nothing more than N5 〜と思う to omou Indicates speaker thought opinion or assumption, connects clause with mental expression N4 〜すぎる sugiru Indicates excess beyond what is appropriate, attaches to verb or adjective stem, means too much or excessively N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information