| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [adv] have be | 93 |
|
| 2 | could not [adv] have be | 46 |
|
| 3 | could [not/n't] [adv] have be | 46 |
|
| 4 | [modal v] n't [adv] have be | 35 |
|
| 5 | [vb mod] n't [adv] have be | 35 |
|
| 6 | could n't [adv] have be | 14 |
|
| 7 | could n't [adv] have be | 14 |
|
| 8 | could n't [adv] have be | 14 |
|
| 9 | could n't [adv] [verb] be | 14 |
|
| 10 | could n't [adv] [vb infin] be | 14 |
|
| 11 | could n't [adv] have [be] | 14 |
|
