page 26: "1-7 Put the subject of a gerund in the possessive case, if possible"
2 types of gerund:
1. exactly like a noun (not taking direct object)
"... subject(possessive noun) V-ing ..."2. mostly like a noun but has some characteristics of a verb or a participle
"... subject(objective form / non-possessive noun) V-ing ...." is common(3. can't be assigned to either type)
page 28: "When the possessive is impossible or bizarre"
"When the subject of gerund is not a simple noun or pronoun but a group of words ..."
(NOTE: 這是給我自己看的筆記，所以我只大概引個內容。想看詳細的內容的人可以用 Google Books http://books.google.com 找這本書)
