| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb mod] we | 180 |
|
| 2 | why should we | 150 |
|
| 3 | why should we | 150 |
|
| 4 | why would we | 10 |
|
| 5 | why would we | 10 |
|
| 6 | why can we | 6 |
|
| 7 | why can we | 6 |
|
