| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] at all | 1065 |
|
| 2 | could [verb] [pron] all | 105 |
|
| 3 | could [verb] [pron] at | 74 |
|
| 4 | could [verb] at all | 20 |
|
