調 しらべる
shiraberu

Ichidan Verb

1. to examine; to look up; to investigate; to check up; to sense; to study; to inquire; to search

Transitive
ココの知能 ちのう指数 しすう調 しらべるのは容易 よういではない。
kokono chinōshisūo shiraberu nowa yōidewanai.
Testing Koko's IQ is not easy.