| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [pron] should [adv] [vb infin] | 209 |
|
| 2 | [adv] you should [adv] [vb infin] | 121 |
|
| 3 | why you [modal v] [adv] [vb infin] | 111 |
|
| 4 | [Wh adv] you should [adv] [vb infin] | 51 |
|
| 5 | why you should [adv] [vb infin] | 50 |
|
| 6 | why you should [adv] [verb] | 50 |
|
