| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [unc] there used to be | 19 |
|
| 2 | [no cls] there used to be | 19 |
|
| 3 | erm [pron] used to be | 9 |
|
| 4 | erm there used to be | 5 |
|
| 5 | erm [ex0] used to be | 5 |
|
| 6 | erm there used to [be] | 5 |
|
| 7 | erm there [vb mod] to be | 5 |
|
| 8 | erm there used to be | 5 |
|
| 9 | erm there used [prep] be | 5 |
|
| 10 | erm there used to [be] | 5 |
|
| 11 | erm there [modal v] to be | 5 |
|
| 12 | erm there used to be | 5 |
|
| 13 | erm there used to be | 5 |
|
