many taken subject iii cause sample type simangunsong there study number case error recount population state interference pronoun performance analyzing found english agreement art clas overgeneralization swasta assimilation thesi result keyword text descriptive student wa made analysi collecting medan strategy research dedy department verb tenth common data showed grammatical consist instrument using grade conducted writing reference 2112121004 university noun aekkanopan pranata communication santo ABSTRACT aim 845 SMA qualitative one selection 2015 language faculty yosep main most