| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [adj] [noun] | 193 |
|
| 2 | [det] could be [adj] | 120 |
|
| 3 | [det] could be [noun] | 39 |
|
| 4 | [det] be [adj] [noun] | 32 |
|
