Помогите пожалуйста:( очень надо!Could+ Perfect infinitiveнужно перевести на английский язык. 1. Она бы могла легко выиграть

1.She could have won the championship easily, but she failed. ИЛИ She could have won the championship easily, but she wasn\'t very lucky. 2.You could have called me! Why didn\'t you call us? We worried. 3.Borodin could have become a good chemist, but he became a famous composer.