我感觉英语不好学 I feel bad English learning

汉语不好学 Chinese is difficult to learn

不学好 Do not learn

孩子们不能好好学习 Children can not learn ; The children couldn't study well

不好好学习 Do not study hard ; Do not make good learning ; Do not learn

她的学习不好 She's learning bad ; Her study is not good

我不能学好英语 I can not learn English ; I can't learn English well

她以前学习不好 She had previously learning bad ; She had to learn good ; She used to learn well ; Her beforehand study not good

我化学学得不好 I learned good chemical ; I learn chemistry well