Try to speak more Note: Either say, According to someone or In someones opinion. Don,'t say according to someone s opinion 2. Opinion is often used as a count noun when it means personal ideas or beliefs about a particular subject/matter/ person 3. break one's back (to do sth ) work very hard (to achieve sth)Try to speak more Note: 1. Either say, According to someone or In someone’s opinion. Don’t say according to someone’s opinion. 2. Opinion is often used as a count noun when it means personal ideas or beliefs about a particular subject/matter/ person. 3. break one’s back (to do sth.): work very hard (to achieve sth.)