the 'grammar's song i remember, (to the tune of Yankee doodle went to town) is for copulative verb--

Be, seen, become, appear,
Look, taste, grow, sound, remain, smell
Copulative verbs take nomnative,
Predicate noun or adjective! (case is implied)

it helped get me through the NY State English regents!

garrison keeler used to have 'the Department of folk songs] as a segment on his show, and it featured many ditties like the one above that helped thousand of school kids learn some of the finer points of grammar.