| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh det] be [v-ing] on | 653 |
|
| 2 | [to-vb] [Wh det] be [v-ing] on | 177 |
|
| 3 | understand [Wh det] be [v-ing] on | 61 |
|
| 4 | to understand [Wh det] be [v-ing] [adv] | 25 |
|
| 5 | to understand [Wh det] be [verb] on | 22 |
|
| 6 | to understand [Wh det] be [v-ing] on | 22 |
|
| 7 | to understand [Wh det] be [v-ing] [adv prt] | 22 |
|
| 8 | to understand [pron] be [v-ing] on | 22 |
|
| 9 | to understand [Wh det] [be] [v-ing] on | 22 |
|
