Excluding "also" at the beginning of the sentence (or phrase), where is emphasizes the conjunctive function, there are (as far as I can tell) four positions for "also":
(1) before the main verb
She also did that.
(2) after the first auxiliary verb
She had also been doing that.
(3) after a so-called main "be"
She was also there.
(4) at the end of the sentence
"Also" is said to be a focusing adverb. As far as I can tell, the focus always seems to be on the whole sentence.
My question is, are these examples with "also" at the end of the sentence acceptable? If so, is there a difference in focus from the corresponsing example where it is central?
"She also did that" vs. "She did that also"
"She had also been doing that" vs. "She had been doing that also"
"She was also there" vs "She was there also"