YOU SAID:
I have no idea what this is trying to achieve.
INTO JAPANESE
私はこれが何を達成しようとしているのか分かりません。
BACK INTO ENGLISH
I do not know what this is trying to achieve.
INTO JAPANESE
私はこれが達成しようとしていることを知らない。
BACK INTO ENGLISH
I do not know what this is trying to achieve.
You've done this before, haven't you.