| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have seen | 702 |
|
| 2 | must have seen | 142 |
|
| 3 | would have seen | 122 |
|
| 4 | should have seen | 122 |
|
| 5 | may have seen | 114 |
|
| 6 | will have seen | 69 |
|
| 7 | might have seen | 56 |
|
| 8 | could have seen | 53 |
|
| 9 | 'd have seen | 24 |
|
| 10 | [vb mod] 've seen | 17 |
|
| 11 | 'll have seen | 16 |
|
| 12 | ought have seen | 10 |
|
| 13 | [vb mod] to have seen | 10 |
|
