| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [prep] | 27424 |
|
| 2 | [v-ing] [prep] long | 80 |
|
| 3 | [was/were] [prep] long | 20 |
|
| 4 | [was/were] [v-ing] long | 18 |
|
