| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [vb infin] | 8968 |
|
| 2 | not [vb infin] [pn reflx] | 1007 |
|
| 3 | could [vb infin] [pn reflx] | 608 |
|
| 4 | could not [pn reflx] | 12 |
|
