Shook and Shaken :



Elvis Presley couldn’t have very well sung “I’m all shaken up,” but that is the grammatically correct form.


“Shook” is the simple past tense of “shake,” and quite correct in sentences like “I shook my piggy bank but all that came out was a paper clip.”


But in sentences with a helping verb, you need “shaken”:


“The quarterback had shaken the champagne bottle before emptying it on the coach.”