| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb mod] not [verb] | 2774 |
|
| 2 | [pron] [vb mod] not know | 220 |
|
| 3 | they [vb mod] [adv] know | 128 |
|
| 4 | they [vb mod] [not/n't] know | 80 |
|
| 5 | they [vb mod] not know | 80 |
|
| 6 | they [modal v] not know | 34 |
|
