In Present perfect^x, Whom^x, Adverbs^x

ETJW-CMD wrote: Dear Goodman, I am one of Hoa’s friends, a member of a friendly yet private English-To-Join-the-World Club that we co-founded here in Vietnam. Last night, she showed me this thread and asked for my opinion. My first reaction was that the present perfect and past tense...

<This form is considered bad English.> By whom? I'm told that is accepted as standard. <It's interesting to note that the artificial language Ido at first did not have perfect tenses they were introduced by popular demand.> Yes, interesting. The thing is, the AE use of the...