Small-smaller-the smallest, young-younger-the youngest, thin-thiner-the thinest, thick-thicker-the thickest,tall-taller-the tallest, fine-finer-the finest, new-newer-the newest, easy-easier-the easest, busy-basier-the basest, dirty-dirtier-the dirtest, famos-famoser-famosest, beautiful-more beautiful-the most beautiful, difficult-more difficult-the most difficult, comfortable- more comfortable-the most comfortable, expensive-more expensive-the most expensive , good-better-the best, bad-worse-the worst, little-littler-the littest, many-more-the most