| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have seen [art] | 6 |
|
| 2 | [pers pn] could have seen [art] | 6 |
|
| 3 | could have seen [art] [noun sg] | 5 |
|
| 4 | could have seen [art] [noun] | 5 |
|
