| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] be [adj] | 1749 |
|
| 2 | [was/were] [v-ing] [prep] be | 1399 |
|
| 3 | [was/were] [v-ing] [prep] [adj] | 885 |
|
| 4 | [was/were] [prep] be [adj] | 350 |
|
