| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why should [adv] | 258 |
|
| 2 | why should [noun prp] | 64 |
|
| 3 | why [adv] [noun prp] | 23 |
|
| 4 | should [adv] [noun prp] | 21 |
|
