| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [verb] n't [adv] [verb] | 2180 |
|
| 2 | [pron] [verb] n't [adv] know | 897 |
|
| 3 | i [verb] [adv] [adv] know | 521 |
|
| 4 | i [verb] not [adv] know | 507 |
|
| 5 | i [verb] [not/n't] [adv] know | 507 |
|
