All along

(PW)

all the time

She was accepted into the university, but she knew all along that she’d get in.

(MW)

all the time all along>

(UsingEnglish.com)

If you have known or suspected something all along, then you have felt this from the beginning.

(die.net)

adv : all the time or over a period of time; "She had known all

           along"; "the hope had been there all along" [syn: right

           along]