Intraference Language learners may experience confusion when they find conflicting patterns within the structure of the newly acquired language. Scovel (2001) calls it intraference. A good example is the use of the third person singular suffix, which causes problems to a great number of learners irrespective of what their mother tongue is. The information about the suffixation (in simple present tense there are no suffixes only in the third person singular) confuses the learners and it comes from English itself. One of the most common indication of intraference is overgeneralization.