| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how did we [verb] [adv] | 8 |
|
| 2 | how [vb past] we [vb infin] [adv] | 7 |
|
| 3 | how [vb past] we [verb] [adv prt] | 7 |
|
