| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [prep] [v-ing] [prep] [art] | 662 |
|
| 2 | [was/were] [vb pp] [prep] [verb] [prep] [art] | 173 |
|
| 3 | [was/were] [verb] [prep] [v-ing] [prep] [art] | 173 |
|
