| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [v-ing] on | 632 |
|
| 2 | [v-ing] on [num] | 518 |
|
| 3 | were [v-ing] [num] | 215 |
|
| 4 | were on [num] | 21 |
|
