| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [adj] | 57109 |
|
| 2 | could be [adj] | 2914 |
|
| 3 | could be [adj] | 2114 |
|
| 4 | could [be] [adj] | 2114 |
|
| 5 | could [be] [adj] | 2112 |
|
