| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adj] he could not | 8 |
|
| 2 | at first he could not | 8 |
|
| 3 | at [adj] he could not | 8 |
|
| 4 | at [num ord] he could not | 8 |
|
| 5 | at first he could not | 8 |
|
