| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did [pron] [vb infin] | 1160 |
|
| 2 | why [verb] we [vb infin] | 187 |
|
| 3 | why do we [vb infin] | 184 |
|
| 4 | [adv] did we [vb infin] | 116 |
|
| 5 | [Wh adv] did we [vb infin] | 80 |
|
| 6 | why did we [verb] | 18 |
|
| 7 | why did we [vb infin] | 17 |
|
| 8 | why [vb past] we [vb infin] | 17 |
|
