ER and IST Spelling cheat sheets. Great companion for UFLI Lessons 111 & 121. Word list, spelling pattern notes, picture embedded images. Lesson 111 er, ar, orer, - runner, jumper ar, or (not always a suffix)-or = /er/ doctor, author, actor, sensor, scissor, -ar + /er/ sugar, polar, solar, collar, dollar, Lesson 121 er, or, ist+er - Makes a verb or action into a noun +or - Makes a verb into a noun +ist = Makes a noun into a skilled person Other suffix ideas--------------------------------------