| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] [noun] | 7181 |
|
| 2 | could [verb] [noun] | 5154 |
|
| 3 | could [verb] [be] | 3102 |
|
| 4 | could [be] [noun] | 542 |
|
