| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] could [adv] [vb infin] | 2211 |
|
| 2 | [noun prp] [modal v] n't [vb infin] | 1539 |
|
| 3 | [noun prp] could [not/n't] [vb infin] | 1381 |
|
| 4 | [noun prp] could not [vb infin] | 1380 |
|
| 5 | [noun] could n't [vb infin] | 1355 |
|
| 6 | [noun prp] could n't [verb] | 609 |
|
