try as I may

try as (one) may

No matter how hard one tries; despite one's best efforts. Try as I may, I just couldn't find a solution to the problem. Struggle all you want, Mr. Bond. Try as you may, you'll never break free from those titanium shackles!
See also: may, try
Farlex Dictionary of Idioms.

try as I may

 and try as I might
Cliché a phrase that introduces an expression of regret or failure. Bill: Try as I may, I cannot get this thing put together right. Andy: Did you read the instructions? Rachel: Wow! This place is a mess! Mother: Try as I might, I can't get Andrew to clean up after himself.
See also: may, try
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • an all-out effort
  • at (one's) doorstep
  • at doorstep
  • (from) top to toe
  • at (one's) expense
  • at expense
  • at somebody's expense
  • at someone's expense
  • be remembered as (something)
  • be remembered as/for something