〔英文筆記〕「關於」的說法

我以前要說「關於XXX」常下意識就用 "regarding to"，
最近才知道原來是錯誤的文法，直接用 "regarding" 就好。
雖然現在很少寫英文了，但還是筆記一下各種「關於」的說法，以備不時之需：

relative to
concerning
regarding
relating to
as regards
as concerns
in regard to
with regard to
with respect to
in respect of
in connection with
as to
as for