| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [prep] [adj] | 83 |
|
| 2 | [coord] could be [adj] | 57 |
|
| 3 | [coord] could be [prep] | 20 |
|
| 4 | [coord] be [prep] [adj] | 13 |
|
