| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't [verb] a | 501 |
|
| 2 | could n't [vb infin] a | 501 |
|
| 3 | [modal v] n't have a | 263 |
|
| 4 | [vb mod] n't have a | 263 |
|
| 5 | could [adv] have a | 82 |
|
| 6 | could n't have [art] | 38 |
|
| 7 | could n't have [art] | 38 |
|
| 8 | could [not/n't] have a | 37 |
|
| 9 | could not have a | 37 |
|
| 10 | could n't have a | 28 |
|
| 11 | could n't have a | 26 |
|
| 12 | could n't have a | 26 |
|
