Hello, fellas. After learning about how to use expressions of quantity in relative clauses last week, today we are still going to have a session on another form of relative clauses. It is the use of noun + of which.

(More on expressions of quantity in relative clauses: https://englishtips4u.com/2018/08/30/grammartrivia-expressions-of-quantity-in-relative-clauses/)

According to Betty Schrampfer Azar, the pattern has the same meaning of whose. In other words, both of them show possession. Noun + of which is used in a relative clause modifying a thing and more common in formal written English. It is preceded by a comma.

(More on whose: https://englishtips4u.com/2014/06/01/engclass-how-to-use-who-whom-and-whose/)

Example:

1) Leo Tolstoy wrote a novel. The title of the novel is Anna Karenina.

    Leo Tolstoy wrote a novel, the title of which is Anna Karenina.

2) The student bought a book. The price of the book was affordable.

     The student bought a book, the price of which was affordable.

3) They like Indonesian food. The taste of the food is spicy.

     They like Indonesian food, the taste of which is spicy.

Source:

Betty Schrampfer Azar, Understanding and Using English Grammar: Third Edition

Compiled and written by @fathrahman for @EnglishTips4U on Wednesday, September 5, 2018