If we can say, "drink, drank, I've drunk,"
Why can't we say, "think, thank, I've thunk?"
Instead, we say, "think, thought, I've thought."
I"ve brung" this up (all right, I've "brought"),
Because it flouts the grammar "rules,"
The stuff that we learned in our schools.
This class of verbs that we call "strong,"
Is puzzling; could the rules be wrong?