| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [v-ing] [prep] [adj] | 351 |
|
| 2 | [vb past] be [v-ing] [prep] [det] | 150 |
|
| 3 | [vb past] be [verb] [prep] several | 52 |
|
| 4 | [verb] be [v-ing] [prep] several | 25 |
|
| 5 | [vb past] [be] [v-ing] [prep] several | 11 |
|
| 6 | [vb past] be [v-ing] [prep] several | 11 |
|
