私は教科書を買うのを忘れた。
Sentence Analyzer
English Translation
        I forgot to buy the textbook.
    
Furigana
Romanji
        Watashi wa kyōkasho o kau no o wasureta.
    
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
        
    
            
                教科書
            
            
                (きょうかしょ)
            
        
        
            textbook; text book
        
    
            
                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.
        
    
            
                買う
            
            
                (かう)
            
        
        
            to buy; to purchase; to value; to have a high opinion; to stir; to provoke
        
    
            
                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
        
    
            
                忘れる
            
            
                (わすれる)
            
        
        
            to forget; to leave carelessly; to be forgetful of; to forget about; to forget (an article)