MSGID: 2:221/6.0 5d1b47c2   
   REPLY: 2:221/6.0 5d1b1acc   
   PID: JamNNTPd/Cygwin32 1.3 20190208   
   CHRS: IBMPC 2   
   TZUTC: 0300   
   TID: hpt/w32-mvc 1.9.0-cur 2019-01-08   
   Alexander Koryagin:   
      
   AK> "So  as"  and  "so that" are interchangeable. "So as" is   
   AK> less common, however.   
      
   Maybe you are confusing "so as" with "so as  to"?   If  not,   
   then  could you cite some examples and dictionary defintions   
   that show "so as" to be interchangeable with "so that"  when   
   introducing an adverbial clause of result or purpose?   
      
   AS>> Your  quotation  is  in  perfect English, even with the   
   AS>> classic first-person "should".  Nothing,  however,  was   
   AS>> replaced  in  the answer, but the verb phrase "take the   
   AS>> most important examination of your career"  was  simply   
   AS>> omitted.   
      
   AK> As was "speaks" in my previous sentence with "to".   
      
   No.  Here is your sentence:   
      
     When  a  person is in a company of friends he never speaks   
     formally. And he should not to.   
      
   If I reinstate the "speaks" that you say was simply omitted,   
   the sentence turns into nonsense:   
      
     And he should not to speaks.   
      
   You  did not omit "speaks", but rather replaced "speak" with   
   "to", which is illogical because it vioaltes type safety.   
      
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