| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [conj] [pron] could | 3737 |
|
| 2 | [to-vb] [conj] [pron] [modal v] | 2824 |
|
| 3 | [to-vb] [conj] [pron] [vb mod] | 2824 |
|
| 4 | [to-vb] [conj] [pron] could | 547 |
|
