| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] it [prep] the | 182 |
|
| 2 | be [v-ing] at it [prep] | 29 |
|
| 3 | [v-ing] at it [prep] the | 25 |
|
| 4 | be [v-ing] at [prep] the | 20 |
|
