| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which could [prep] [noun] be | 6 |
|
| 2 | which could [prep] [noun] [be] | 6 |
|
| 3 | which could [prep] [noun] [be] | 6 |
|
| 4 | which could [prep] [noun sg] [be] | 6 |
|
