| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] have [vb pp] from | 20 |
|
| 2 | it [modal v] have [vb pp] from | 20 |
|
| 3 | it [modal v] have come from | 9 |
|
| 4 | it could have [vb pp] from | 8 |
|
| 5 | it could have [vb pp] from | 8 |
|
| 6 | it must have [vb pp] from | 5 |
|
| 7 | it must have [vb pp] from | 5 |
|
