| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] should have [verb] [noun prp] | 64 |
|
| 2 | they [modal v] have [verb] [noun prp] | 32 |
|
| 3 | they should have [verb] [noun] | 15 |
|
| 4 | they should [verb] [verb] [noun prp] | 6 |
|
