彼はちゃんとそのことについて手紙を書いた。
Sentence Analyzer
English Translation
        He was careful to mention it in the letter.
    
Furigana
Romanji
        Kare wa chanto sono koto nitsuite tegami o kaita.
    
Words
            
                彼
            
            
                (かれ)
            
        
        
            he; him; his; boyfriend
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                ちゃんと
            
            
                (ちゃんと)
            
        
        
            diligently; seriously; earnestly; reliably; steadily; legitimately; perfectly; properly; exactly; orderly; punctually; regularly; sufficiently; satisfactorily; quickly
        
    
            
                其の
            
            
                (その)
            
        
        
            that (something or someone distant from the speaker, close to the listener; actions of the listener, or ideas expressed or understood by the listener); the; um...; er...; uh...
        
    
            
                事
            
            
                (こと、こん)
            
        
        
            thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as
        
    
            
                に就いて
            
            
                (について)
            
        
        
            concerning; regarding; per (e.g. 100 yen per person); for every
        
    
            
                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