to tell the truth
01
実を言うと, 正直に言うと
used to emphasize that the speaker is about to be completely honest in what they are going to say
Collocation
例
To tell the truth, I did n't enjoy the movie as much as I thought I would.
正直に言うと, 私は思っていたほどその映画を楽しめませんでした。
