| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] [v-ing] [det] | 655 |
|
| 2 | [be] [v-ing] on [det] | 357 |
|
| 3 | [vb mod] [be] [v-ing] on | 336 |
|
| 4 | [vb mod] [be] on [det] | 45 |
|
