| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] know [adv] it be [v-ing] | 13 |
|
| 2 | [not/n't] know [adv] it be [v-ing] | 12 |
|
| 3 | not know [adv] it be [v-ing] | 12 |
|
| 4 | n't know [adv] it be [v-ing] | 9 |
|
| 5 | know [adv] [adj] it be [v-ing] | 8 |
|
| 6 | know [adv] [adj] it be [v-ing] | 6 |
|
| 7 | know [adv] it be [v-ing] [prep] | 6 |
|
