| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] you should [vb infin] | 460 |
|
| 2 | why [pron] should [vb infin] | 412 |
|
| 3 | why you [modal v] [vb infin] | 131 |
|
| 4 | [Wh adv] you should [vb infin] | 113 |
|
| 5 | why you should [verb] | 73 |
|
| 6 | why you should [vb infin] | 72 |
|
