| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] could have [vb pp] at [art] | 6 |
|
| 2 | [pron] could have [vb pp] at [art] | 6 |
|
| 3 | [pers pn] could have [vb pp] at [art] | 5 |
|
| 4 | could [adv] have [vb pp] at [art] | 39 |
|
| 5 | could [not/n't] have [vb pp] at [art] | 35 |
|
| 6 | could not have [vb pp] at [art] | 35 |
|
| 7 | could n't have [vb pp] at [art] | 20 |
|
| 8 | could not have [vb pp] at [art] | 15 |
|
| 9 | could have be [vb pp] at [art] | 10 |
|
| 10 | could have [be] [vb pp] at [art] | 10 |
|
| 11 | could have been [vb pp] at [art] | 10 |
|
| 12 | could have [been] [vb pp] at [art] | 10 |
|
| 13 | could have [vb pp] at [art] [noun] | 6 |
|
| 14 | could have [vb pp] at [art] [adj] | 5 |
|
| 15 | could have [vb pp] at [art] [adj] | 5 |
|
