| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] [v-ing] | 5703 |
|
| 2 | [vb past] [prep] was | 165 |
|
| 3 | [prep] [v-ing] was | 104 |
|
| 4 | [vb past] [v-ing] was | 21 |
|
