| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [det] [noun] | 861 |
|
| 2 | could be [det] [noun] | 149 |
|
| 3 | could be [vb pp] [noun] | 96 |
|
| 4 | could be [vb pp] [det] | 71 |
|
