If the SP rules will not generate it, propose a revision to the PS rules and then draw a tree structure for the sentence. If the above PS rules will generate it you do not need to draw a tree. The diligent students work hard. The girls took the test. The linguists love really weird sentences.
Children learn easily.
How many morphemes 2. Whether the morphemes are bound or free 3. Whether the bound morphemes are inflectional or derivational 4.