| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [vb infin] [noun] | 2804 |
|
| 2 | [pron] could still [vb infin] | 374 |
|
| 3 | could still [vb infin] [noun] | 52 |
|
| 4 | [pron] still [vb infin] [noun] | 34 |
|
