| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [vb pp] [adv prt] [prep] the | 18 |
|
| 2 | could have [verb] [adv prt] [prep] the | 18 |
|
| 3 | could have [verb] [adv prt] [prep] the | 18 |
|
| 4 | could have [verb] out [prep] the | 8 |
|
| 5 | could have [verb] [adv prt] of the | 5 |
|
