Welcome to the forums.
amend - correct something: I amended the misspellings in my sentence.
alter - change something's nature: I altered the dress so that it looked like a designer garment.
modify - partially change something: I modified my opinion after hearing the arguments, but still hold by my basic belief that children can learn to read easily.
rectify - put something right: I rectified the situation between John and me by agreeing to go to the ballgame.
Student or Learner