| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] they [modal v] [verb] [prep] a | 11 |
|
| 2 | [vb base] they [modal v] [vb infin] [prep] a | 11 |
|
| 3 | [vb base] they [vb mod] [verb] [prep] a | 11 |
|
