YOU SAID:

Im afraid i cant do that

INTO JAPANESE

私はそれを行うことはできません恐れ

BACK INTO ENGLISH

I fear I can't do it

INTO JAPANESE

私はそれができないのではないかと恐れている

BACK INTO ENGLISH

I'm afraid I can't do it.

INTO JAPANESE

残念ですが出来ません

BACK INTO ENGLISH

I'm afraid I can't do it, sir.

INTO JAPANESE

残念ですが出来ません

BACK INTO ENGLISH

I'm afraid I can't do it, sir.