Part 1. Definition
In this task, you will be shown a correct English sentence. You need to generate an incorrect form of the input sentence.
Part 2. Example
Students shouldn't work multiple full-time jobs.
Answer: Student's shouldn't work many full-time jobs.
Explanation: The possessive form is not correct in this instance and many should be multiple.
Part 3. Exercise
The second critique of this method is that the costumer loses all critical though and that he is not on guard . 
Answer:
The second critic of this method is that the costumer lose all critical reflex and that he is not in guard . 