| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] should [vb infin] kept [art] | 7 |
|
| 2 | [pron] should [vb infin] kept [art] | 7 |
|
| 3 | should [vb infin] kept [art] [noun] | 5 |
|
