| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] how they [vb mod] [verb] | 40 |
|
| 2 | not understand how [pron] [vb mod] [verb] | 20 |
|
| 3 | not understand how [pers pn] [vb mod] [verb] | 14 |
|
| 4 | [adv] understand how they [vb mod] [verb] | 6 |
|
| 5 | not understand [adv] they [vb mod] [verb] | 6 |
|
| 6 | not understand how they [modal v] [verb] | 5 |
|
| 7 | not understand how they [vb mod] [verb] | 5 |
|
