| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] [v-ing] [prep] [det] | 487 |
|
| 2 | [verb] [be] [verb] on [det] | 219 |
|
| 3 | [verb] [be] [v-ing] on [adj] | 89 |
|
