彼らは決して汚いプレーをしてはならない。
Sentence Analyzer
English Translation
        They should never play foul.
    
Furigana
Romanji
        Karera wa kesshite kitanai pure- o shite wanaranai.
    
Words
            
                彼ら
            
            
                (かれら)
            
        
        
            they (usually male); them
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                決して
            
            
                (けっして、けして)
            
        
        
            never; by no means; not in the least; in no way
        
    
            
                汚い
            
            
                (きたない)
            
        
        
            dirty; filthy; foul; unclean; disordered; messy; untidy; poor (e.g. handwriting); indecent (language, etc.); dirty; vulgar; coarse; dastardly; mean; base; underhanded; stingy; greedy
        
    
            
                プレイ
            
            
                (プレイ、プレー)
            
        
        
            play; pray; prey
        
    
            
                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.
        
    
            
                為る
            
            
                (する)
            
        
        
            to do; to cause to become; to make (into); to turn (into); to serve as; to act as; to work as; to wear (clothes, a facial expression, etc.); to judge as being; to view as being; to think of as; to treat as; to use as; to decide on; to choose; to be sensed (of a smell, noise, etc.); to be (in a state, condition, etc.); to be worth; to cost; to pass (of time); to elapse; verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs"); creates a humble verb (after a noun prefixed with "o" or "go"); to be just about to; to be just starting to; to try to; to attempt to
        
    
            
                ば
            
            
                (ば)
            
        
        
            if ... then; when; and; why don't you...?; the more (one does something); because; since