YOU SAID:

This is weird i dont understand

INTO JAPANESE

これは私が理解していない奇妙です

BACK INTO ENGLISH

This is strange that I do not understand

INTO JAPANESE

これが私にはわからないのは不思議です

BACK INTO ENGLISH

It is strange that I do not know this

INTO JAPANESE

私がこれを知らないのは不思議です

BACK INTO ENGLISH

It is strange that I do not know this