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English Grammar: Non-Defining Relative Clause
English Grammar: Defining Relative Clause

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I donīt understand the difference between Defining and Non-defining clauses.when I use and what I use to do Non-defining relative. I have some examples about :
Defining relative:
All the teenagers who/that you interviewed yesterday think newspapers are obsolete.
Non-defining relative:
Jeremy,who has just turned 16,never reads the newspaper.
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Study the difference between them from this website.
English Grammar: Non-Defining Relative Clause
English Grammar: Defining Relative Clause
Last edited by Atchan; 07-Aug-2010 at 23:10.
The quick and dirty answer is that if the adjective clause answers "Which one?" or "What kind?" then it is defining. If it doesn't answer either question, it is non-defining.
Your second example is clearly non-defining. The adj. cl. does not tell us which Jeremy.
Your first example is more complicated. The way it is written (as a defining clause) means only the teenagers that you interviewed think newspapers are obsolete. Other teenagers don't necessarily agree. The adjective clause answers the question "Which teenagers?"
The sentence could be rewritten to mean that all teenagers agree: Teenagers, some of whom I interviewed yesterday, think newspapers are obsolete.
** "Teenagers, who I interviewed yesterday, think newspapers are obsolete" is illogical as it suggests that you interviewed all teenagers in the world.
Hope this helps.
Hi!I want to thank you so much for your help.
Thanks,thanks!
Marcilene.
I want to thanks for your help!Thanks and thanks!
You help me a lot.
Marcilene.
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