| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] a [adj -er] | 20 |
|
| 2 | could not [vb infin] a [adj -er] | 20 |
|
| 3 | could not have a [adj] | 19 |
|
| 4 | [modal v] not have a [adj -er] | 13 |
|
| 5 | could not have [art] [adj -er] | 10 |
|
| 6 | could [adv] have a [adj -er] | 10 |
|
| 7 | could not have [art] [adj -er] | 10 |
|
| 8 | could not have a [adj -er] | 10 |
|
| 9 | could not have a [adj -er] | 10 |
|
