you could use these words interchangeably but it would not sound natural in English. Conduct the way that a person behaves in a particular place or situation Organize and carry out ex. My friend is very professional. He always conducts himself well. meaning the way he behaves at work (conducts himself) is good and professional. Preform This word is use for an action or activity that usually requires training or skill ex. Susan performed the song. ex. The dancer preformed on the stage. Do This is actually tough to explain. I think I will leave that one for someone else to explain. I would just be confusing. good luck! hope this is helpful!