I agree with the Quirk et al. remarks. "After I" sounds like a silly
hypercorrection to me. "Than" and "as" are not yet as well-established
as prepositions as are "after" and "before".
 
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Johanna Rubba   Assistant Professor, Linguistics 
English Department, California Polytechnic State University
One Grand Avenue  • San Luis Obispo, CA 93407 
Tel. (805)-756-2184  •  Fax: (805)-756-6374 • Dept. Phone.  756-259
• E-mail: [log in to unmask] •      Home page: http://www.calpoly.edu/~jrubba
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"Understanding is a lot like sex; it's got a practical purpose, 
but that's not why people do it normally"  -            Frank  Oppenheimer
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