is 

  1. 動詞
及物動詞:
此be動詞為第三者單數現在式
是...(人事物)
值...(數值)
等於...(人事物)
(人、動物、名字等)叫...(指定名字等)

    同義字詞
breathe,exist,live,subsist
bear,lie,sit,stand
grade,place,rank,rate,stand
befall,betide,chance,come,come about,come down,come off,cook,do,go on,happen,occur,pass,transpire

  2. 助動詞
is ...(過去分詞動詞...):
被做...
is ...(動詞ing...):
正在做...
在做...

    
                        
    3. 
                                                                        
  3. 

    名詞
i複數:
字母I(英語字母的第九個字母)
/此名詞同"i's"/

    

    
                        
    4. 
                                                                        
  4. 

    語法
(問句)Is ...(人事物):
...是嗎?
(問句)Is ...(A: 人事物) ...(B: 動詞ing...):
(A)正在做(B)嗎?
(A)在做(B)嗎?
(問句)Is ...(A: 人事物) ...(B: 過去分詞動詞...):
(A)被做(B)嗎?
(問句)Is ...(A: 人事物) ...(B: 人事物):
(A)是(B)嗎?
(問句)Is ...(A: 人事物) ...(B: 形容詞):

    


    
                        
    5. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                Barack Obama is in over his head.                            
    2. 
                                                    
  2. 
                                It is also called "Dakshina Kasi".                            
    3. 
                                                    
  3. 
                                Finally, the perfect bill is timely.                            
    4. 
                                                    
  4. 
                                Why is so much knowledge being spread?                            
    5. 
                                                    
  5. 
                                This is called 'indirect discrimination'.                            
    6.