| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] know [pron] be | 1390 |
|
| 2 | [not/n't] know [pron] be | 947 |
|
| 3 | not know [pron] be | 947 |
|
| 4 | not [verb] [pron] be | 864 |
|
| 5 | not know [pron] [be] | 135 |
|
