| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be say have [been] | 25 |
|
| 2 | could be [verb] have [been] | 19 |
|
| 3 | could be say have [be] | 11 |
|
| 4 | could be say [verb] [been] | 11 |
|
| 5 | could [be] say have [been] | 11 |
|
