| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [be] [v-ing] [prep] | 179 |
|
| 2 | [pron] [vb past] [be] [v-ing] on | 137 |
|
| 3 | who [vb past] [be] [verb] on | 58 |
|
| 4 | who [verb] [be] [v-ing] on | 39 |
|
