| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [vb infin] [pron] [prep] [art] | 277 |
|
| 2 | [pron] should [vb infin] [pron] [prep] [art] | 135 |
|
| 3 | they should [verb] [pron] [prep] [art] | 15 |
|
