| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] have [be] [prep] [adj] | 53 |
|
| 2 | could [adv] [verb] [be] [prep] [adj] | 7 |
|
| 3 | could [adv] have [be] [prep] [adj] | 5 |
|
