| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't know each | 16 |
|
| 2 | do n't know each | 16 |
|
| 3 | [vb base] n't know each | 12 |
|
| 4 | do n't know each | 10 |
|
| 5 | [vb past] n't know each | 7 |
|
| 6 | did n't know each | 6 |
|
