Task 1. According to Jack Richards, there are five factors explaining learner’s types of errors. Explain sources of errors and give examples. 1. Mother tongue interference. *Differences of languages’ structures. Arabic – English. E.g., They are beautifuls. They students. 2. Overgeneralization. *Simplification strategy. Learned rule applied to all. E.g., learning to pluralize (-s) Two pens √ Two mouses – Three mans- Two foots. 3. Ignorance of rule restriction. *The learner lacks the knowledge of the rule. E.g., I will let him to drive. I will make her to leave. She can translates very well. 4. Incomplete application of rules. Learners apply one of the two connected rules. In forming negatives and interrogatives for instance: She speaks English pretty well. (positive) She does not speaks English pretty well.(negative) Do she speak English pretty well? (interrogative) 5. False concept hypothesized. Learners wrongly assume something. No rule’s ignored or overgeneralized. E.g. Assuming that Verb be “am – is – are ” , indicate present tense. I am speak French. You are dress elegantly.