| ascertain the truth | สืบสวนหาความจริง [นิติศาสตร์ ๑๑ มี.ค. ๒๕๔๕] |
| ascertain the truth | As I heard the story secondhand, I can't ascertain the truth of it. |
| ascertain the truth | I am going to ascertain the truth of the matter. |
| ascertain the truth | I'm going to ascertain the truth of his statement. |