| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [verb] [prep] the [num] | 13 |
|
| 2 | could [be] [verb] [prep] the [num] | 13 |
|
| 3 | could [be] [vb pp] [prep] the [num] | 12 |
|
| 4 | could [be] [verb] [prep] the two | 5 |
|
