| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [not/n't] know [pron] | 2102 |
|
| 2 | [vb past] [not/n't] [verb] i | 1254 |
|
| 3 | [verb] [not/n't] know i | 334 |
|
| 4 | [vb past] [adv] know i | 85 |
|
