彼の行為の理由は説明できない。
Sentence Analyzer
English Translation
        I can't explain the reason for his conduct.
    
Furigana
Romanji
        Kare no kōi no riyū wa setsumei dekinai.
    
Words
            
                彼
            
            
                (かれ)
            
        
        
            he; him; his; boyfriend
        
    
            
                の
            
            
                (の)
            
        
        
            indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
        
    
            
                行為
            
            
                (こうい)
            
        
        
            act; deed; conduct
        
    
            
                理由
            
            
                (りゆう、わけ)
            
        
        
            reason; pretext; motive
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                説明
            
            
                (せつめい)
            
        
        
            explanation; exposition
        
    
            
                出来る
            
            
                (できる)
            
        
        
            to be able (in a position) to do; to be up to the task; to be ready; to be completed; to be made; to be built; to be good at; to be permitted (to do); to become intimate; to take up (with somebody); to grow; to be raised; to become pregnant
        
    Kanji
Readings: ヒ、 かれ、 かの、 か.の
                        Meanings: he, that, the
                    Readings: コウ、 ギョウ、 アン、 い.く、 ゆ.く、 -ゆ.き、 -ゆき、 -い.き、 -いき、 おこな.う、 おこ.なう
                        Meanings: going, journey, carry out, conduct, act, line, row, bank
                    Readings: イ、 ため、 な.る、 な.す、 す.る、 たり、 つく.る、 なり
                        Meanings: do, change, make, benefit, welfare, be of use, reach to, try, practice, cost, serve as, good, advantage, as a result of
                    Readings: リ、 ことわり
                        Meanings: logic, arrangement, reason, justice, truth
                    Readings: ユ、 ユウ、 ユイ、 よし、 よ.る
                        Meanings: wherefore, a reason
                    Readings: セツ、 ゼイ、 と.く
                        Meanings: opinion, theory, explanation, rumor
                    Readings: メイ、 ミョウ、 ミン、 あ.かり、 あか.るい、 あか.るむ、 あか.らむ、 あき.らか、 あ.ける、 -あ.け、 あ.く、 あ.くる、 あ.かす
                        Meanings: bright, light