Among the mistakes in writing roots are "upamyanu", "vyrozhdenie", "lagirey", "period", "otprovlyaet", "pomagat", "mentalitet". Difficulties also arose with the spelling of paired prefixes: "priodolel", "preobretayet", "zdelat", "bezcenny". There were mistakes in the suffixes of nouns as well: "daliye", "teplatoi", "tsennost". Difficulties also occurred with the writing of "ь" in verbs and verbal forms: "reshiv ostatsya", "kazhdy lyubit povalyatsya", "khochet otkazatsya". Graduates also made mistakes in the case endings of nouns: "o dobrom otnoshenii", "sluzhbu v armii", "opit v obshchenii", "pri vstrechi". They made mistakes with the number of "n" not only in short verbal adjectives but also in nouns: "danyye", "zhiznenogo", "samootverzhennost", "skazanny". There were problems with the writing of the particles "ne" and "ni", as well as the prefix "nedo-": "nesdavalsya", "ne sluzhivshiy paren", "nedo kontsa". Mistakes were made in compound and complex prepositions: "v zaklyuchenii svoego sochineniya", "v techenii goda", "vsledstviye", "v predverii", "na protyazhenii", "zaschet". There were also difficulties in writing adverbs: "po dal'she", "po tikhon'ku", "po istine vazhny".
