| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [verb] [prep] | 2228 |
|
| 2 | [modal v] [adv] be [verb] to | 2151 |
|
| 3 | could [adv] [be] [verb] to | 237 |
|
| 4 | could [adv] be [verb] to | 237 |
|
| 5 | could [adv] [be] [verb] to | 237 |
|
