| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [pron] should [verb] [to-vb] | 45 |
|
| 2 | why you [vb mod] [verb] [to-vb] | 24 |
|
| 3 | why you [modal v] [verb] [to-vb] | 24 |
|
| 4 | [adv] you should [verb] [to-vb] | 14 |
|
| 5 | why you should [verb] [verb] | 10 |
|
| 6 | why you should [verb] [to-vb] | 7 |
|
