"原本想做某事".怎么翻译??

虚拟语气would have +动词的过去分词形式
我本来要办这事的，可是没时间。
I would have done it, but I had no time

I had planned to do sth.

meant to do sth.

i wanted to do sth

I originally wanted to do something.

I had planned to do sth.