| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | perhaps [pron] should [verb] [verb] | 90 |
|
| 2 | perhaps [pers pn] should [verb] [verb] | 88 |
|
| 3 | [adv] they should [verb] [verb] | 33 |
|
| 4 | perhaps they [modal v] [verb] [verb] | 22 |
|
| 5 | perhaps they should [verb] [verb] | 6 |
|
