| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [noun prp] could [not/n't] [verb] | 30 |
|
| 2 | [art] [noun prp] could [not/n't] [vb infin] | 30 |
|
| 3 | [art] [noun prp] could not [verb] | 25 |
|
| 4 | [art] [noun prp] could n't [verb] | 5 |
|
