| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | then how did [pron] [verb] | 13 |
|
| 2 | then how [vb past] [pron] [vb infin] | 13 |
|
| 3 | then how [vb past] [pers pn] [verb] | 13 |
|
| 4 | then how [vb past] you [verb] | 8 |
|
| 5 | then how [vb past] you [verb] | 8 |
|
