| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know what be [v-ing] on | 12 |
|
| 2 | not know [Wh det] be [v-ing] on | 12 |
|
| 3 | not know [pron] be going on | 12 |
|
| 4 | not know what be [v-ing] on | 12 |
|
| 5 | not know [pron] be [v-ing] on | 9 |
|
| 6 | not know [pron] was [v-ing] on | 8 |
|
