| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how did [pron] [verb] [pron] [vb infin] | 5 |
|
| 2 | how [vb past] [pron] [verb] [pers pn] [vb infin] | 5 |
|
| 3 | how [vb past] [pers pn] [verb] [pron] [vb infin] | 5 |
|
