Schoolhouse Rock was slightly before my time, but I still remember hearing about it. Glancing at chapter 22 of my StenEd theory book reminded me of this video, so I might as well post this. Some of it's fast, but it's repetitive enough to be able to catch the chorus and the little words that so often get dropped when the dictation gets fast, like and, or, that, this, etc. To practice to this video, write only clear outlines, drop when you have to, and/or use a program to slow it down (click here to learn how).
deliberation DLIBGS, foundation FOUNGS, examination KPMGS, conjunction KWUNGS, junction JUNGS, function FUNGS, contemplation KPLAIGS, inebriation NAOEBGS, education EGS, enumeration NAOUMGS, termination TERMGS, variation VAIRGS, application PLI* BGS, qualification KWAUFGS, hesitation HEGS, signification SIG/F*BGS (F*BGS stroke can be used for -fication endings)
And here are some more that are worth mentioning (MENGSDZ -- ha!)
But when in doubt, write it out!
medication MEFGS celebration SPWRAIGS completion PLEGS
admission DMIGS location LAEGS probation PROEBGS
confession KWEFGS discretion SKREGS expression SKPREGS
permission PERMGS proposition PROPGS explosion SKPLOEGS
promotion PROEMGS conclusion K-GS concussion KUNGS
execution SKAOUGS confusion KWAOUFGS prosecution PR-GS
convention KWENGS suspension SPENGS description DRIPGS
perception PREPGS conversion KWERGS concession SKEGS
physician F-GS discussion SKUGS