| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] could [be] | 163 |
|
| 2 | [adj] could have [be] | 146 |
|
| 3 | [adv] could have [be] | 27 |
|
| 4 | [adv] [adj] could have | 23 |
|
