I'm doing a research paper and my thesis is "everyone can be made into good singers." Right now I'm looking for some examples of people who were bad, but after taking lessons and training become good. I'm also looking for articles to prove my thesis. Please help me with suggestions and where I can find articles or books that related to my thesis. I got many books on "vocal training" too.
"everyone can be made into A good singer"
Subject verb agreement
everyone – singular
singers – plural