Sentence examples for doing a from inspiring English sources

It is correct and usable in written English.
"Doing a" is often used when describing an action or activity that is being performed. It is used in the present tense and can also be used in a continuous tense form, such as "is doing a". Example: I am doing a project for my science class. He is doing a great job on the team. She loves doing a crossword puzzle every morning. The workers are doing a wonderful job on the construction site.