African American English (AAE) used by white characters in 12 Years a slave movie

African American English is one of the English dialect or language variation that used by some of African Americans, or it is known as Black English. African American English has unique patterns that different with Standard English. Usually African American English is used by the black people but in study, the researcher found that African American English also used by white Americans. This study used descriptive qualitative method to describe the patterns of African American English and to interpret the purposes in use African American English in 12 Years A Slave movie. The researcher found three kinds of phonological patterns such as reducing final consonant sounds or cluster [nd] pronounced [n], sound pattern th [θ] is pronounced voiceless [t], and the reduction phonological pattern –ing [ŋ] to –in [n]. In the term of syntactic patterns, the researcher found eight kinds like single auxiliary ‘is’ in plural subject, the use of ain’t, the omitted of auxiliary be (are), aspectual be, verbal marker [dən], multiple negation, no auxiliary in question, and relative clause. The white characters had purposes why they used African American English, they used AAE to underestimate the black characters who as the slaves, to underestimate black people’s knowledge, to show the power of masters to their slave, to show the solidarity between the masters and the slaves, and to show solidarity among the white characters.