YOU SAID:

i can't believe i texted him that, this is so embarrassing

INTO JAPANESE

私は彼にテキストを送ったとは信じられない、これはとても恥ずかしいことだ

BACK INTO ENGLISH

I can't believe I sent him the text, this is a very embarrassing thing

INTO JAPANESE

私は彼にテキストを送ったとは思えない、これは非常に恥ずかしいことです。

BACK INTO ENGLISH

I do not think I sent him a text, this is a very embarrassing thing.

INTO JAPANESE

私は彼にテキストを送ったとは思わない、これは非常に恥ずかしいことです。

BACK INTO ENGLISH

I do not think I sent him a text, this is a very embarrassing thing.