a. Omission
Omission error occurs when the learner omitted a necessary element of word. There are 123 occurrence or 20.81
of all errors occurring in the students’ answer sheets. Omission errors fell both in the
substance and in the grammar level. Most students committed errors by omitting a letter which must exist within a morpheme. For examples:
Swiming in the winter can boost your immune system. Committed
by students 1, 2, 3
We went runing in the morning. Committed by students 4, 8, 9 I am used to joging in the morning. Committed by students 13, 14,
15
Her bad habit is forgeting herself in her duty. Committed by
students 25, 28, 29, 30 Suggested correction
Swimming in the winter can boost your immune system. We went running in the morning.
I am used to jogging in the morning. Her bad habit is forgetting herself in her duty.
From the example above, the students committed an important letter which should exist within a morpheme. They omitted double
consonant before adding –ing for a words which have vowel before
ending by consonant.
b. Addition
Addition errors occur when the students presented an unnecessary element to their sentences. In this research, the writer found 44
occurrence or 7.45 of all errors occurring in the students’ answer sheets. In this research, the writer found that the most cause of doing
addition errors is adding –ing with words that ended by “e” letter
without removing it where learner failed to delete certain item which is needed in some linguistics item but not for others. For examples:
Smokeing costs a lot of money. Committed by students 6, 15, 18,
20
He is interested in makeing friends. Committed by students 18,
19, 21, 25
Let’s postpone leaveing until tomorrow. Committed by students
13, 15, 18, 22
What makes Jessy scared is closeing all windows alone in the
night. Committed by students 3, 13, 20, 25 Suggested correction
Smoking costs a lot of money. He is interested in making friends.
Let’s postpone leaving until tomorrow. What makes Jessy scared is closing all windows alone in the night.
From the example above, the students failed to omit certain item which should not exist in their sentence. Some students failed to delete
“e” letter after adding –ing form in the sentence.
c. Misformation
Misformation is the dominant type of errors which found in this research. There are 424 occurrence or 71.74 of whole errors occurring
in students answer sheets. Misformation error occurred when the students chose the wrong form of structure of morpheme and word,
such as the following examples:
Sells a drug is illegal. Committed by students 5, 6, 7, 30 She gets full credit for rehabilitates the neighborhood. Committed
by students 1, 2, 3, 4, 5
I wouldn’t miss to see that lovely film for the world. Committed
by students 2, 3, 4, 7
His favourite hobby is to play online games. Committed by
students 12, 26
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