| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [prep] [adj] [noun] | 158 |
|
| 2 | could have [been] [adj] [noun] | 55 |
|
| 3 | could have [been] [prep] [adj] | 30 |
|
| 4 | could have [been] [prep] [noun] | 23 |
|
