| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] have [vb pp] [art] [noun sg] | 549 |
|
| 2 | could have [vb pp] [art] [noun sg] | 473 |
|
| 3 | could [adv] have [vb pp] [art] | 124 |
|
| 4 | could [adv] have [art] [noun sg] | 38 |
|
| 5 | could [adv] have [vb pp] [noun sg] | 17 |
|
