就我所知，他不懶。

As far as I know, he isn't lazy.

As far as I know he is not lazy.

Source: Tatoeba

Sentence Composition

1 就我所知 jiùwǒsuǒzhī as far as I know; to my knowledge
2 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
3 不 bù
  1. no; not so
  2. (bound form) not; un-
4 懶 lǎn lazy