| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] [pers pn] should have [vb pp] | 9 |
|
| 2 | [prep] [adv] [pers pn] should have [vb pp] | 8 |
|
| 3 | by [adv] [pers pn] should have [vb pp] | 5 |
|
