| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have seen a [noun sg] | 18 |
|
| 2 | [vb mod] have seen a [noun] | 18 |
|
| 3 | [modal v] have seen a [noun] | 14 |
|
| 4 | may have seen a [noun] | 6 |
|
| 5 | may have seen a [noun] | 6 |
|
| 6 | would have seen a [noun] | 5 |
|
| 7 | would have seen a [noun] | 5 |
|
