| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [vb pp] [prep] | 7113 |
|
| 2 | could be [vb pp] [prep] | 7113 |
|
| 3 | [modal v] be [vb pp] within | 584 |
|
| 4 | could be [verb] within | 76 |
|
| 5 | could [be] [vb pp] within | 74 |
|
| 6 | could be [vb pp] within | 74 |
|
| 7 | could [be] [vb pp] within | 74 |
|
| 8 | could be [vb pp] within | 74 |
|
