| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] on [det] | 1288 |
|
| 2 | were [v-ing] on | 632 |
|
| 3 | were [v-ing] [det] | 629 |
|
| 4 | were on [det] | 55 |
|
