Student or Learner
What's the difference between "I don't sing" and "I can't sing"? "I don't sing" is translated as "I can't sing". Does "I don't sing" stress your inherent incapability of singing while "I can't sing" is for "I can't sing temporarily"?
ex)Jim performed fieldwork in Lesotho, a small nation in Africa. There, studying and interacting with local villagers, he patiently earned their trust until one day he was asked to join in one of their songs. Jim replied in a soft voice, “I don’t sing,” and it was true. Although he was an excellent oboe player, he was unable to sing a simple melody.
Because he couldn't sing, he didn't sing. The translator has taken liberties with the original.