まったくほかの理由で彼に手紙を書いたのです。
Sentence Analyzer
English Translation
        I wrote to him for quite another reason.
    
Furigana
        まったくほかの理由 で彼 に手紙 を書 いたのです。
    
Romanji
        Mattaku hoka no riyū de kare ni tegami o kaita no desu.
    
Words
            
                全く
            
            
                (まったく)
            
        
        
            really; truly; entirely; completely; wholly; perfectly; indeed; good grief (expression of exasperation)
        
    
            
                他
            
            
                (ほか)
            
        
        
            other (place, thing, person); the rest; outside; beyond; nothing except; nothing but; nothing apart from; nothing aside from; no choice (but to); besides...; in addition to...
        
    
            
                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
        
    
            
                理由
            
            
                (りゆう、わけ)
            
        
        
            reason; pretext; motive
        
    
            
                で
            
            
                (で、にて)
            
        
        
            indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.
        
    
            
                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
        
    
            
                手紙
            
            
                (てがみ)
            
        
        
            letter
        
    
            
                を
            
            
                (を)
            
        
        
            indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
        
    
            
                書く
            
            
                (かく)
            
        
        
            to write; to compose; to pen; to draw; to paint
        
    
            
                です
            
            
                (です)
            
        
        
            be; is
        
    Kanji
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: ヒ、 かれ、 かの、 か.の
                        Meanings: he, that, the
                    Readings: シュ、 ズ、 て、 て-、 -て、 た-
                        Meaning: hand
                    Readings: シ、 かみ
                        Meaning: paper
                    Readings: ショ、 か.く、 -が.き、 -がき
                        Meaning: write