| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could have [vb pp] in [det] | 7 |
|
| 2 | [pron] could have [vb pp] in [det] | 7 |
|
| 3 | [noun] could have [vb pp] in [det] | 5 |
|
| 4 | could [adv] have [vb pp] in [det] | 6 |
|
| 5 | could have [be] [vb pp] in [det] | 6 |
|
| 6 | could have been [vb pp] in [det] | 6 |
|
| 7 | could have be [vb pp] in [det] | 6 |
|
| 8 | could have [been] [vb pp] in [det] | 6 |
|
| 9 | could have [vb pp] in [det] [noun] | 8 |
|
| 10 | could have [vb pp] in [det] [noun sg] | 7 |
|
