| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] he could have [vb pp] a | 6 |
|
| 2 | he could [adv] have [vb pp] a | 25 |
|
| 3 | he could not have [vb pp] a | 15 |
|
| 4 | he could [not/n't] have [vb pp] a | 15 |
|
| 5 | he could [adv] have [vb pp] a | 10 |
|
| 6 | he could not have [vb pp] a | 9 |
|
| 7 | he could n't have [vb pp] a | 6 |
|
| 8 | he could have [vb pp] a [noun] | 20 |
|
| 9 | he could have [vb pp] a [noun sg] | 20 |
|
| 10 | he could have [vb pp] a [adj] | 7 |
|
| 11 | he could have [vb pp] a [adj] | 5 |
|
