"我本来是想去学习英语的”用英语怎么说？

I was planning to learn English.
这句话你给的中文有点歧义，到底表达的是“想去”没去成，还是想去学“英语”却学了别的？

PS：这里的朋友给出的翻译除了二楼的还可以之外都不对。be to不和want to再连用。be supposed to表达应当做但是没做的，而且应当用BE supposed to。
至于没有用到过去时或者用过去完成时的，显然都不对了。

I should have wantted to learn English

I planned to go studying English originally.

我本来是想去学习英语的
I did plan to learn English.

I should have studied English。

我本来要 典型用法 meant to
I meant to learn English.