| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [pron] used to [be] | 133 |
|
| 2 | [conj] there used to [be] | 69 |
|
| 3 | [coord] there [modal v] to [be] | 45 |
|
| 4 | [coord] there used [prep] [be] | 38 |
|
