J. Swift railed against the strong verb form -t, but he lost. "Slink" is a curiosity: as a transitive verb it's regular (e.g.,the cow slinked her calf and after she had slinked her calf, we called the vet); it's slink, slank, slunk as an intransitive verb. Lucky I, all this stuff comes naturally to me, but I am startled to find "au" in "rice pilau" pronounced "off".