YOU SAID:

I'll admit that in the past I've been a nasty.

INTO JAPANESE

私は過去に私が厄介者だったことを認めます。

BACK INTO ENGLISH

I admit that I was a nuisance in the past.

INTO JAPANESE

私は過去に迷惑だったことを認めます。

BACK INTO ENGLISH

I admit that I was annoying in the past.

INTO JAPANESE

私は過去に迷惑をかけていたことを認めます。

BACK INTO ENGLISH

I acknowledge that I have inconvenienced the past.

INTO JAPANESE

私は過去に不便を感じたことを認めます。

BACK INTO ENGLISH

I admit that I felt inconvenience in the past.

INTO JAPANESE

私は過去に不便を感じたことを認めます。

BACK INTO ENGLISH

I admit that I felt inconvenience in the past.