| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did n't know [pron] | 1642 |
|
| 2 | i did n't know | 1599 |
|
| 3 | i did n't [pron] | 54 |
|
| 4 | i did know [pron] | 13 |
|
