This paper is mainly analytical and comparative. Here I have proposed three new forms of predictor-corrector formulae for solving ordinary differential equation of first order and first degree. These predictor-corrector formulae have derived by taking the general forms of predictor-corrector. These formulae approximate the value of dependent variable based on five initial value of independent variable by predictor formula and then improve that initial crude value of dependent variable by corrector formula. A comparative analysis among proposed three predictor-corrector formula with Milne's predictor-corrector formula and Adam-Moulton's predictor-corrector formula by means of comparing with exact value of dependent variable have expressed as relative error. Finally, conclusive discussions have narrated.