| A | B |
| omitted letter | Her criticism wa definite and very helpful to us. (was) |
| omitted word | We hope that is in the new curriculum. (that it is) |
| added letter | Yess, I helped analyze the apparent grammar errors. (Yes) |
| added word | The the post office will be closed Monday. (the) |
| extra space | A s a prominent person, she was very helpful to us. (As) |
| no space | Every defendant lostthe argument about procedure. (lost the) |
| misstroke | Shcool will be out real soon. (School) |
| transposition | He is yuor liaison with Beneficial Life Insurance. (your) |
| no error | My note about the interference benefited everyone. |