| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] [adv prt] of [art] | 430 |
|
| 2 | could have [vb pp] [adv prt] [art] | 32 |
|
| 3 | could have [vb pp] [adv prt] of | 15 |
|
| 4 | could have [vb pp] of [art] | 5 |
|
