| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [pers pn] [adv] have | 9 |
|
| 2 | could [not/n't] [pers pn] [adv] have | 9 |
|
| 3 | could n't [pers pn] [adv] have | 9 |
|
| 4 | could [adv] [pers pn] [adv] have | 9 |
|
| 5 | could [adv] [pers pn] just have | 8 |
|
