| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [not/n't] understand [pron] | 273 |
|
| 2 | [not/n't] understand [pron] at | 16 |
|
| 3 | do [not/n't] understand at | 6 |
|
| 4 | do [not/n't] [pron] at | 5 |
|
