| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] | 71140 |
|
| 2 | be [v-ing] this | 1786 |
|
| 3 | [v-ing] this [prep] | 592 |
|
| 4 | be this [prep] | 217 |
|
