Subjective Pronoun

Subjective case (主格)類的代名詞包括 I, you, he, she, it, we, they, who, whoever，接下來討論主格代名詞在什麼時候適用。

1. 使用subjective case來表示動詞的主詞
   John and (I, me) like to play tennis on weekend.
   Answer: John and I like to play tennis on weekend.
   
   把and連接詞及其他的主詞移除，簡化句子後較容易選擇正確的代名詞。
   I like to play tennis on weekend.
   Me like to play tennis on weekend.
   兩句文字的前一句才是正確的。
   
   在英文中使用多主詞時，記得把I放在最後面；John and I絕不可說成或寫成”I and John”。
   
   其他例句
   (Who, Whom) do you believe is the better player?
   Answer: Who do you believe is the better player?
   通常，you believe, you think, you suppose, you feel類的語句，省略後也不會影響語義。因此把 do you believe 省略後，Who (do you believe) is better player? 即可看出為什麼要使用Who而不選Whom。
   
   
2. 代名詞也會被用作predicate nominative(主詞補語)
   主詞補語是緊接在linking verb(連結動詞)的名詞或代名詞，給予主詞不同的意義。linking verbs如being形式(am, is , are, etc.)，感官動詞(look, smell, taste, etc.)，狀態動詞(appear, seem, become, etc.)。
   The winner of the game is (I, me)
   Answer: ”The winner of the game is I.”，因為I重新詮釋主詞 the winner of the game。
   其他例句
   The man who called the police was (he, him).
   Answer: The man who called the police was he.
   
   使用主詞補語通常會讓語句讀起來較不自然甚至太過正式，因此在一般的文章中，通常會改寫為較通順的語句。
   
   The person I chose was he.
   The winners were they.
   可改寫為
   He was the person I chose.
   I chose him. (比較好)
   及
   They were the winners.
   They won. (比較好)
   
   "It is I."或"It is me."是正確的用法？嚴格來說，正確的寫法應為”It is I.”，但是”It is me” (及It is us”)越來越常被用到，已經成為特例的用法。