Letters that make to be sure
s, o, b, e, r, t, u are letters that make 'to be sure'
s, o, b, e, r, t, u are letters that make 'to be sure'
1 possible definitions for 'to be sure'
Under this definition, to be sure is an adjective and has the following properties:
without doubt, no doubt have the same meaning as 'to be sure'
"to be sure, he is no Einstein"