Срочно) Помогите пожалуйста сделать предложение отрицательным и спросить все…

You shouldn't be realistic in a number of people workingon project, the cost of the project and its size.Who should be realistic in a number of people workingon project, the cost of the project and its size? What kind should you be in a number of people working on project, the cost of the project and its size? In what should you be realistic while working on project?