| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] how [indef pn] [modal v] [adv] | 6 |
|
| 2 | how [indef pn] [modal v] [adv] [vb infin] | 11 |
|
| 3 | how [indef pn] [modal v] [adv] [verb] | 11 |
|
