| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [be] [prep] | 381 |
|
| 2 | we [modal v] [be] [prep] | 381 |
|
| 3 | we [vb mod] [be] [prep] | 381 |
|
| 4 | we could [be] [prep] | 27 |
|
