| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pron] used [prep] [be] | 254 |
|
| 2 | [conj] they used [prep] [be] | 73 |
|
| 3 | [subord] they [modal v] [prep] [be] | 72 |
|
| 4 | [subord] they used [prep] [be] | 58 |
|
