| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [pron] could [be] | 6 |
|
| 2 | could [be] [pers pn] could [be] | 6 |
|
| 3 | could [be] it could [be] | 5 |
|
| 4 | could [be] it could [be] | 5 |
|
