| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been some | 103 |
|
| 2 | must have been some | 42 |
|
| 3 | must have been some | 42 |
|
| 4 | may have been some | 18 |
|
| 5 | may have been some | 18 |
|
| 6 | might have been some | 16 |
|
| 7 | might have been some | 16 |
|
| 8 | would have been some | 15 |
|
| 9 | would have been some | 12 |
|
| 10 | could have been some | 9 |
|
| 11 | could have been some | 9 |
|
