| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [prep] | 27424 |
|
| 2 | [v-ing] up [prep] | 6347 |
|
| 3 | [was/were] [v-ing] up | 1510 |
|
| 4 | [was/were] up [prep] | 804 |
|
