Morphemes are the smallest unit of language that can carry meaning or grammatical function. They are either bound or free, depending on whether they can stand alone. They are either derivational or inflectional.
Derivational morphemes change the meaning or part of speech of a word.
Inflectional morphemes do not change the meaning of a word. Decide whether the italicized words in this poem from Ogden Nash contain examples of derivational or inflectional morphemes. Also, find the free morpheme. If faced with washing up he never gripes , But simply drops more dishes than he wipes . . . Who can't turn on or off the proper burner . . .