我一定会改正英文

I am sure to correct shortcomings .

可以啊！correct可以作为动词“改正，更正”。

I believe that as long as I paid efforts will be successful.

1 .I will correct shortcomings2.I will certainly shortcomings3.I can certainly correct the shortcoming这三种翻译都可以-

I will correct my mistake.直译。如果想表达很强烈的“一定会改正错误”就用下面的句子：I would definitely correct any mistake I made.

可以，correct做形容词时为“正确的，对的”，做动词时，可及物，有“纠正，改正”地意思。