| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] [prep] | 7113 |
|
| 2 | [be] [vb pp] available [prep] | 271 |
|
| 3 | could [be] [vb pp] available | 22 |
|
| 4 | could [be] available [prep] | 13 |
|
