| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [v-ing] on [prep] | 64 |
|
| 2 | [vb past] [be] [v-ing] [prep] some | 48 |
|
| 3 | [be] [v-ing] on [prep] some | 21 |
|
