| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] there used to be | 6 |
|
| 2 | [pron] [ex0] used to be | 6 |
|
| 3 | there [ex0] used to be | 5 |
|
| 4 | there [ex0] used to be | 5 |
|
| 5 | [ex0] [ex0] used to be | 5 |
|
