| 1. | 
| Seeing him, she smiled at him.  | 
| She seeing him, she smiled at him.  | 
| Seeing him, smiled at him.  | 
| She is seeing him, she smiled at him.  | 
    
  | 
| 2. | 
| Reading a magazine, felt hungry.  | 
| He reading a magazine, he felt hungry.  | 
| Reading a magazine, he felt hungry.  | 
| He is reading a magazine, he felt hungry.  | 
    
  | 
| 3. | 
| She is asked some questions, she was not able to answer.  | 
| She asked some questions, she was not able to answer.  | 
| Asked some questions, was not able to answer.  | 
| Asked some questions, she was not able to answer.  | 
    
  | 
| 4. | 
| Being a teacher, has to study teaching methods.  | 
| He being a teacher, he has to study teaching methods.  | 
| Being a teacher, he has to study teaching methods.  | 
| He is a teacher, he has to study teaching methods.  | 
    
  |