| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] the last [noun] | 9 |
|
| 2 | could [adv] [verb] the last [noun] | 9 |
|
| 3 | could [not/n't] [verb] the last [noun] | 9 |
|
| 4 | could n't [verb] the last [noun] | 8 |
|
