| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [verb] for | 203 |
|
| 2 | [modal v] [not/n't] ask for | 39 |
|
| 3 | could [adv] ask for | 16 |
|
| 4 | could [not/n't] ask [prep] | 11 |
|
| 5 | could [not/n't] ask [prep] | 11 |
|
| 6 | could [not/n't] ask for | 11 |
|
