Being that the usual course of a common verb goes

sing, sang, sung

we do hereby enjoin Chongo Chimp hereafter called the party of the first part from saying

fling, flung, flung

which causes dictionary users hereafter called the party of the second part great difficulty when they expect to see

fling, flang, flung

and further, we hereafter called the party of the third part are embroiled in a dispute not of our making.