| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] [be] | 11458 |
|
| 2 | [v-ing] us [prep] | 624 |
|
| 3 | us [prep] [be] | 327 |
|
| 4 | [v-ing] us [be] | 15 |
|
