| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] they [modal v] | 1249 |
|
| 2 | [prep] [pron] they [vb mod] | 1249 |
|
| 3 | [prep] [pron] [pron] could | 1214 |
|
| 4 | [prep] [pron] they could | 233 |
|
| 5 | [prep] [pron] they could | 233 |
|
