commerce -> commercial noun + suffix -> adjective Suffix Examples -al central, political, national, optional, professional -ful beautiful, peaceful, careful -less endless, homeless, careless, thoughtless -ish childish, slavish, Spanish verb + suffix -> adjective Suffix Examples -ent different, dependent, excellent, -able drinkable, countable, avoidable noun or verb + suffix -> adjective Suffix Examples -ous continuous, dangerous, famous -ive attractive, effective, imaginative, repetitive Collaborative Online Exercise 1 about Adjective Formation https://www.uefap.com/vocab/exercise/build/form_a1.htm prefix + adjective -> negative adjective Collaborative Online Exercise 2 about Adjective Formation h...