| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] there used to be | 35 |
|
| 2 | [noun] [ex0] used to be | 35 |
|
| 3 | [noun] [ex0] used to be | 35 |
|
| 4 | [noun sg] [ex0] used to be | 27 |
|
