these make me cringe whenever i hear them, and it takes all of my willpower not to correct people who commit the crimes...
- it's your lost
-been there, been that
- using whatsoever in lieu of whatever
-your instead of you're
-for a while, - that is so wrong
-i'll go ahead...as in mauna na ako...the correct way to use that phrase is when you're stating something that you're about to do,like:
i'll go ahead and check it for you. and not just leaving ahead of everybode else. filipinism, according to call center accent and speech trainers.
-misuse of prepositions- in, on, at
-errors on tenses..i actually saw this sign inside a university i won't name: Exams going on. Please do not
rearranged the chairs. or this one

id you
engaged in extra-curricular activities?
-this is singular. use 'these' when referring to plural subjects. puh-lease.
- saying ka-classmate, ka workmate, ka-boardmate. redundancy, and nuff said.
irregardless-makalagot gyud ani!
not unless- double negatives
using
about after
mentioned. the verb mentioned can stand alone, unless you say mentioned something, then you can follow it up with about. mentioned something about.you mentioned politics. not you mentioned about politics. that grates on my ear.
mura gyud kog na-violate whenever i hear that, and on national tv, no less!
your list.