| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have [vb pp] a | 170 |
|
| 2 | [Wh det] [vb mod] have [vb pp] a | 76 |
|
| 3 | [Wh det] [modal v] have [vb pp] a | 76 |
|
| 4 | [Wh det] could have [vb pp] [art] | 28 |
|
| 5 | [Wh det] could have [vb pp] [art] | 28 |
|
| 6 | [Wh det] could [verb] [vb pp] a | 11 |
|
| 7 | [Wh det] could have [verb] a | 11 |
|
| 8 | [Wh det] could have [vb pp] a | 11 |
|
| 9 | [Wh det] could have [vb pp] a | 11 |
|
| 10 | [Wh det] could have [vb pp] a | 11 |
|
| 11 | [Wh det] could [vb infin] [vb pp] a | 11 |
|
