| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [verb] [prep] | 1334 |
|
| 2 | [adv] be [verb] [prep] [be] | 201 |
|
| 3 | could be [verb] [prep] [be] | 152 |
|
| 4 | could [adv] [verb] [prep] [be] | 46 |
|
