Образуйте сравнительную и превосходную степень от прилагательных fat,slow,weak,big,strong.slim.
Fat-fater--the fatest Slow-slower-the slowest Weak-weaker-the weakest Big-bigger-the biggest Strong-stronger-the strongest Slim-slimer-the slimest
Fat-fatter-the fatests slow-slower-the slowest weak-weaker-the weakest big-biger-the bigest strong-stronger-the strongest slim-slimer-the slimest