We can add the suffixes er, or, -ist to verbs or nouns to make nouns that describe people. We usually add -er and or to verbs and ist to nouns. Write the nouns for these words. Use your dictionary if necessary. 1 art artist ence 2 sing 3 drive 4 invent 5 science 6 economy 7 teach 8 play 9 photograph 10 direct 11 write 12 build