| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] because we do n't know | 10 |
|
| 2 | [noun sg] because we do n't know | 6 |
|
| 3 | because we do n't know [adv] | 13 |
|
| 4 | because we do n't know [Wh adv] | 11 |
|
| 5 | because we do n't know [pron] | 8 |
|
| 6 | because we do n't know how | 6 |
|
| 7 | because we do n't know how | 6 |
|
