How do you know what verb/word to use when speaking/writing in Japanese? I have been studying Japanese for 3 years, and even now I have problems figuring out what the right word is to use in certain sentences. For example, if I wanted to say "please correct my mistakes" in Japanese, what word would I use for 'correct'? Would it be 正す？or 直す？ Also for other sentences where there is more than one word for the same verb, how do I know when to use which? I'm always having trouble with this. If you can, please also explain to me how I can conjugate verbs within a sentence, because even though I know the verb endings I sometimes don't know what conjugation I am supposed to use. Thank you and sorry for the long question..^^