| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] [v-ing] [prep] | 830 |
|
| 2 | [was/were] [v-ing] up [prep] | 480 |
|
| 3 | it [was/were] up [prep] | 143 |
|
| 4 | it [was/were] [v-ing] up | 50 |
|
| 5 | it [v-ing] up [prep] | 19 |
|
