make certain
https://gyazo.com/82737e7e8cd33e630b46e57f917b279d
source: Easy Solution for Dio to Have Killed Jotaro | JoJo Amino Amino
make certain
with clause take action to ensure that something happens or is the case:
«…を/…だと/…かを» 確かめる(make sure) «of/that節/wh節･句»
e.g. I made certain that our paths would never cross again.
establish whether something is definitely correct or true:
«…を/…ということを» 確実にする, 確実に手配する(make sure) «of/that節» (!that節中は未来形にしない)
e.g. he probably knew her, but it didn't do any harm to make certain.
#collocation