| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't [verb] [pron] | 3812 |
|
| 2 | n't [verb] [adv] [pron] | 3282 |
|
| 3 | could n't [verb] [adv] | 1421 |
|
| 4 | could [verb] [adv] [pron] | 372 |
|
| 5 | could n't [adv] [pron] | 13 |
|
