私は彼に一度も優しくしてやらなかったのが心残りだ。
Sentence Analyzer
English Translation
        I regret that I have never been kind to him.
    
Furigana
Romanji
        Watashi wa kare ni ichi do mo yasashiku shiteyaranakatta no ga kokoronokori da.
    
Words
            
                私
            
            
                (わたし、わたくし)
            
        
        
            I; me; private affairs; personal matter; secrecy; selfishness
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                彼
            
            
                (かれ)
            
        
        
            he; him; his; boyfriend
        
    
            
                に
            
            
                (に)
            
        
        
            at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
        
    
            
                一
            
            
                (いち)
            
        
        
            one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)
        
    
            
                度
            
            
                (ど)
            
        
        
            degree (angle, temperature, scale, etc.); counter for occurrences and times; strength (of alcohol)
        
    
            
                も
            
            
                (も)
            
        
        
            too; also; in addition; as well; (not) either (in a negative sentence); both A and B; A as well as B; neither A nor B (in a negative sentence); even; as much as; as many as; as far as; as long as; no less than; no fewer than; even if; even though; although; in spite of; further; more; again; another; the other
        
    
            
                優しい
            
            
                (やさしい)
            
        
        
            tender; kind; gentle; graceful; affectionate; amiable
        
    
            
                為てやる
            
            
                (してやる)
            
        
        
            to do for (someone)
        
    
            
                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
        
    
            
                が
            
            
                (が)
            
        
        
            indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
        
    
            
                心残り
            
            
                (こころのこり)
            
        
        
            regret; reluctance
        
    
            
                だ
            
            
                (だ)
            
        
        
            be; is; indicates past or completed action; indicates light imperative
        
    Kanji
Readings: シ、 わたくし、 わたし
                        Meanings: private, I, me
                    Readings: ヒ、 かれ、 かの、 か.の
                        Meanings: he, that, the
                    Readings: イチ、 イツ、 ひと-、 ひと.つ
                        Meanings: one, one radical (no.1)
                    Readings: ド、 ト、 タク、 たび、 -た.い
                        Meanings: degrees, occurrence, time, counter for occurrences, consider, attitude
                    Readings: ユウ、 ウ、 やさ.しい、 すぐ.れる、 まさ.る
                        Meanings: tenderness, excel, surpass, actor, superiority, gentleness
                    Readings: シン、 こころ、 -ごころ
                        Meanings: heart, mind, spirit, heart radical (no. 61)
                    Readings: ザン、 サン、 のこ.る、 のこ.す、 そこな.う、 のこ.り
                        Meanings: remainder, leftover, balance