| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [unc] there used to [be] | 19 |
|
| 2 | erm [pron] used to [be] | 9 |
|
| 3 | erm there [modal v] to [be] | 5 |
|
| 4 | erm there used [prep] [be] | 5 |
|
