| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [prep] | 26019 |
|
| 2 | that [was/were] [v-ing] | 872 |
|
| 3 | that [was/were] [prep] | 619 |
|
| 4 | that [v-ing] [prep] | 498 |
|
