| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] [conj] | 1515 |
|
| 2 | could well [be] [vb pp] | 97 |
|
| 3 | well [be] [vb pp] [conj] | 79 |
|
| 4 | could well [be] [conj] | 27 |
|
