| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [adv] [verb] | 1458 |
|
| 2 | could [not/n't] [adv] [vb infin] | 1454 |
|
| 3 | [modal v] [not/n't] [adv] come | 39 |
|
| 4 | could [adv] [adv] come | 12 |
|
| 5 | could [not/n't] [adv] come | 6 |
|
| 6 | could [not/n't] [adv] come | 6 |
|
