| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] [prep] [noun sg] | 9748 |
|
| 2 | could [be] [verb] [prep] [noun] | 1510 |
|
| 3 | could [be] [verb] [prep] [noun sg] | 832 |
|
| 4 | could [be] [verb] [prep] [noun sg] | 832 |
|
