Abstract :
The aim of learning a language is to be able to communicate in a right way.
There is no a silent language knowledge, a language must be produced in words to
achieve its goals in learning second or foreign language comprehending. Trough
speaking, we can see how is a speaker skill in mastering a language. A good
speaker is who able to produce language which arranged as its rule. In speaking,
appropriate sentence structure and context are very helping in order to gain
listener?s comprehending. The purpose of this research was to find out the types
of grammatical errors frequently made by students in delivering the impromptu
speech.
In collecting the data, the researcher used documentation of video of
impromptu speech. A method to analyze the error is called error analysis. The
indicators are: (a) Morphology error (b) Syntax error. From these indicators, the
researcher find out students? grammatical error in delivering the impromptu
speech.
In this research, the researcher found 127 errors in morphology. Those were
34 (14,5%) errors in noun, 77 (33%) errors in verb, 4 (2%) errors in adjective, 2
(1%) errors in adverb, 10 (4%) errors in preposition. In syntax was found 107
errors. Those were 26 (11%) errors in phrase, 33 (14%) errors in clause, 21 (9%)
errors in sentence, and 27(11,5%) errors in intersentence. From the result, the
researcher concluded that the most frequent grammatical error found in verb.