| Base form | Past Simple | Past Participle | |
| 
                             swear 
                             
            
             | 
                        
                             swore 
                             
            
             | 
                        
                             sworn 
                             
            
             | 
                        
                             
            
             | 
                    
| 
                             
                                -ing form
                             
                            swearing 
                             
            
             | 
                        
                             
                                s
                             
                            swears 
                             
            
             | 
                        
發誓, 宣誓