| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] [art] | 23753 |
|
| 2 | [v-ing] in [prep] [art] | 787 |
|
| 3 | be [v-ing] in [prep] | 465 |
|
| 4 | be in [prep] [art] | 454 |
|
| 5 | be [v-ing] in [art] | 33 |
|
