| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] not know [adv] | 25 |
|
| 2 | they did not know [adv] | 25 |
|
| 3 | they [vb past] not know [adv] | 25 |
|
| 4 | they [vb past] not know [Wh adv] | 18 |
|
| 5 | they [vb past] not know how | 12 |
|
| 6 | they [vb past] not know how | 12 |
|
| 7 | they [vb past] not know [adv] | 7 |
|
