Criminal Sentence 547: Dawwg Gramma

Something Randy Jackson said on "American Idol" last night:

"You sung..."

Yo, yo. Don't you mean "sang"?

I know he's a musician, not a grammarian, but I've recently heard a number of people using past participles instead of past tense. A common one you might have heard before: "I seen it."

Many times, the past participle is the same as the past-tense form (e.g., "I looked"/"I have looked")--but not always!