| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] on this | 113 |
|
| 2 | be [v-ing] on this | 113 |
|
| 3 | were [v-ing] [prep] this | 75 |
|
| 4 | were [v-ing] on [adj] | 72 |
|
| 5 | were [verb] on this | 28 |
|
| 6 | [was/were] [v-ing] on this | 24 |
|
| 7 | were [v-ing] on [det] | 23 |
|
| 8 | were [v-ing] on this | 5 |
|
