Do you not see the past tense in:

「努力したら悪い癖が直った。」?????

And this was your translation:
"Bad habit can be corrected if one's make an effort."

How many meanings can my sentence "The original is in the past tense." have anyway?

Gee :D , I am so sorry. So I guess I should use "Could be" instead of "Can be"? :p

Honest question: Do you know what "past tense" means?

"When I made the effort, I cured my bad habits." Or, more literally, "When I made the effort, my bad habits were cured."

Hi KyleGoetz san, I do understand what past tense means. But my English is still very poor, so there bound to be some miscommunication. :p

Thanks for translating it to me, by the way. :)

No problem. I didn't know your native language isn't English; I should have been a bit nicer. I'm sorry.

Oh no, don't say that, is all good really. :pandahurray: