| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] could have be [adj] | 19 |
|
| 2 | [noun pl] could have [been] [adj] | 19 |
|
| 3 | [noun pl] could have been [adj] | 19 |
|
| 4 | [noun pl] could have [be] [adj] | 19 |
|
| 5 | [noun pl] could have [be] disastrous | 5 |
|
