| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know [pron] | 7452 |
|
| 2 | [was/were] [not/n't] [pron] | 4908 |
|
| 3 | [was/were] [not/n't] know | 156 |
|
| 4 | [was/were] know [pron] | 11 |
|
