| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [been] a very [adj] | 8 |
|
| 2 | could have be a very [adj] | 8 |
|
| 3 | could have [be] a very [adj] | 8 |
|
| 4 | could have been a very [adj] | 8 |
|
| 5 | could have a very [adj] [noun sg] | 7 |
|
| 6 | could have a very [adj] [noun] | 7 |
|
