YOU SAID:

The dog is indubitably smart.

INTO JAPANESE

その犬は間違いなく賢い。

BACK INTO ENGLISH

The dog is definitely smart.

INTO JAPANESE

犬は間違いなく賢いです。

BACK INTO ENGLISH

Dogs are definitely smart.

INTO JAPANESE

犬は確かに賢いです。

BACK INTO ENGLISH

Dogs are indeed smart.

INTO JAPANESE

確かに犬は賢いですね。

BACK INTO ENGLISH

Dogs are certainly smart.

INTO JAPANESE

確かに犬は賢いですね。

BACK INTO ENGLISH

Dogs are certainly smart.