Lone Swordsman  +  524631 Sun, 08 Jun 08 05:00 PM  Hi, Could you please tell me if there's any rule regarding when to use "as" and when to use "when" in such sentences as below: 1) The thought occurred to me as I was watching the show. 2) The thought occurred to me when I was watching the show. I personally tend to use the second one all the time. Are they used interchangeably? Thanks. Lone Swordsman Joined on Fri, Jun 15 2007 New Member 32

	Doll  +  524644 Sun, 08 Jun 08 05:38 PM Hello, search it on the search box right above. Doll Joined on Sat, Mar 10 2007 Senior Member 2,806

	Kooyeen  +  524691 Sun, 08 Jun 08 08:39 PM Hi, I think "as" in those contexts usually means either "while" or "as soon as". So I wouldn't say it usually means "when", generally speaking. Anyway, in most cases, you can avoid using "as" at all, and you can easily choose between "when" and "while". Just my opinion. Kooyeen Joined on Thu, Dec 22 2005 Italy Senior Member 4,933 Parental Advisory / Explicit Posts

	Lone Swordsman  +  524724 Sun, 08 Jun 08 11:41 PM Thanks, Kooyeen By the way, after googling it a liitle bit, I came across a web page that describes different adverb clauses with time expressions. If someone's still interested, here is the link: http://esl.about.com/library/grammar/blgr_adverbclauses_time.htm So, the right answer to my question would be the first sentence.   Lone Swordsman Grammar, Verbs, Clauses, Adverbs