| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [v-ing] [prep] | 2312 |
|
| 2 | [vb past] be [verb] through | 121 |
|
| 3 | [verb] be [v-ing] through | 96 |
|
| 4 | [vb past] [be] [v-ing] through | 33 |
|
