Omission error I resent their hit golf balls She know that her parent Addition Error She was annoyed at your

ask my mom for buying it mom to buy it Related to the sample above, the students put the preposition “for” and verb+ing in the wrong order. “For” is always followed by a noun and “to” always followed by a verb. Because of the action of the sentence refers to one particular action. It means that it must use to infinitive. Besides, the “ing” of the verb “buy” must be eliminated. I think the students produced this error because they are confused of the use of preposition “for” and to infinitive.

4.2.5. Kinds of Errors in Using Gerund after Possesive

Gerund can be preceded by possessive adjective or noun in the possessive case such as my, his, her, and B udi’s. Gerunds after possessive adjective refer to the person denoted by the possessive adjective or pronoun. There are 149 errors in using gerund after possesive made by the students. The errors consist of omission error, additional error, misinformation errror, and misordering error.

1. Omission error

Omission is an error of leaving out an item that is required for an utterance to be considered grammatical. There are 47 errors of omitting items in gerund after possesive found in data. a. Omission of “ing” Original Sentence Reconstruction

59. I resent their hit golf balls

down my hole.

60. She know that her parent

get crazy because of her shopping hobby I resent their hitting golf balls down my hole. She know that her parents getting crazy because of her shopping hobby. Universitas Sumatera Utara Related to the samples above, the student produced error because they omitted the suffix “ing” that must appear in the verb after possesive. According to Thomson and Martinet 1969:164 in formal English the possesive adjective is used with the gerund, but in spoken or less formal English, it is very comman to use the accusative personal pronoun. This error might occur because of the inability of the students using gerund after possesive.

2. Addition Error

Addition error is the presence of an item which must not appear in a well- formed utterance. There are 31 addition error of gerund after possesive made by the students. a. Addition of “ed” Original Sentence Reconstruction 61. My parents are happy about my winned the prize in the essay contest.

62. She was annoyed at your

interupted her. My parents are happy about my winning the prize in the essay contest. She was annoyed at your interupting her. Related to the samples above, the students produced error because they added suffix “ed”. Suffix “ed” is used for the past reguler verb and it is not proper with the sentences that must be in verb+ing form. According to Thomson and Martinet 1969:164 in formal English the possesive adjective is used with the gerund, but in spoken or less formal Universitas Sumatera Utara English, it is very comman to use the accusative personal pronoun. I think this error occurs because the students do not understand the use of gerund after preposition. b. Addition of Past Irregular Verb. Original Sentence Reconstruction 63. My parents are happy about my won the prize in the essay contest.

64. Everybody was shocked