| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [conj] they [modal v] [adv] [verb] | 134 |
|
| 2 | [vb past] [conj] [pron] should [adv] [verb] | 52 |
|
| 3 | [verb] [conj] they should [adv] [verb] | 28 |
|
