| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been some sort of | 10 |
|
| 2 | [vb mod] have been some sort of | 10 |
|
| 3 | must have been some sort of | 6 |
|
| 4 | must have been some sort of | 6 |
|
| 5 | have been some sort of [noun] | 6 |
|
| 6 | have been some sort of [noun sg] | 6 |
|
