to the best of my belief
idiomPart ofbelief
to the best of my belief — idiom
1. as far as the speaker is sure, based on what they currently know — used when the
1.idiom
Definition
as far as the speaker is sure, based on what they currently know — used when they cannot fully promise it is true.
Example
To the best of my belief, the keys are still on Leila's kitchen table.
No staff member, to the best of my belief, has ever opened that locked cabinet.