| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] understand [was/were] | 12 |
|
| 2 | [vb mod] [not/n't] understand [was/were] | 12 |
|
| 3 | could [not/n't] understand [was/were] | 12 |
|
| 4 | [modal v] [not/n't] understand [was/were] | 12 |
|
| 5 | [verb] [not/n't] understand [was/were] | 5 |
|
| 6 | [vb past] [not/n't] understand [was/were] | 5 |
|
| 7 | do [not/n't] understand [was/were] | 5 |
|
| 8 | did [not/n't] understand [was/were] | 5 |
|
| 9 | [not/n't] understand [pron] [was/were] | 22 |
|
| 10 | [not/n't] understand what [was/were] | 21 |
|
| 11 | [not/n't] understand [Wh det] [was/were] | 21 |
|
| 12 | [not/n't] understand what [was/were] | 21 |
|
| 13 | [not/n't] understand [was/were] why | 5 |
|
| 14 | [not/n't] understand [was/were] [adv] | 5 |
|
| 15 | [not/n't] understand [was/were] why | 5 |
|
| 16 | [not/n't] understand [was/were] [Wh adv] | 5 |
|
