YOU SAID:

I must also warn you that he bragged about having others watch you.

INTO JAPANESE

私はまた、彼が他の人にあなたを見て持っていることを自慢したことを警告しなければなりません。

BACK INTO ENGLISH

I must also warn you that he boasted that he has seen you by others.

INTO JAPANESE

私はまた、彼が他の人によってあなたを見てきたことを自慢したことを警告しなければなりません。

BACK INTO ENGLISH

I must also warn you that he boasted that he had seen you by others.

INTO JAPANESE

私はまた、彼が他の人によってあなたを見たと自慢したことを警告しなければなりません。

BACK INTO ENGLISH

I must also warn you that he was proud to have seen you by others.

INTO JAPANESE

私はまた、彼が他の人によってあなたを見たことを誇りに思っていることを警告しなければなりません。

BACK INTO ENGLISH

I must also warn you that he is proud to have seen you by others.

INTO JAPANESE

私はまた、彼が他の人によってあなたを見たことを誇りに思っていることを警告しなければなりません。

BACK INTO ENGLISH

I must also warn you that he is proud to have seen you by others.