| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how can [pron] [vb infin] [pron] | 397 |
|
| 2 | [coord] how can [pron] [vb infin] | 138 |
|
| 3 | [coord] can [pron] [vb infin] [pron] | 132 |
|
