My grammatical skills may be rusty, but for US use, I use the following exclusion list which does not include pronouns but does include conjunctions and prepositions:
Code:
Let StrExcl = "(a),a,an,and,as,at,(b),be,but,by,(c),cm,(d),(e),eg,en,eq,etc,(f),for," & _
"(g),(h),(i),ie,in,into,(j),(k),(l),(m)," & _
"mm,(n),na,nb,(o),of,off,on,or,(p),(q),(r),re,(s),(t),the," & _
"to,(u),(v),via,vs,(w),with,(x),(y),yd,(z)"