| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [pron] at all | 17 |
|
| 2 | could [vb infin] [pron] at all | 17 |
|
| 3 | could [verb] [pron] at all | 17 |
|
| 4 | could [verb] [indef pn] at all | 13 |
|
| 5 | could [verb] nothing at all | 8 |
|
| 6 | could [verb] nothing at all | 8 |
|
