有人看見他上樓。

He was seen to go upstairs.

Source: Tatoeba

Sentence Composition

1 有人 yǒurén
  1. someone
  2. people
  3. anyone
  4. there is someone there
  5. occupied (as in restroom)
2 看見 kànjiàn to see; to catch sight of
3 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)
4 上樓 shànglóu to go upstairs