| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in [Wh det] used to be | 26 |
|
| 2 | in what used to [be] | 26 |
|
| 3 | in [Wh det] used to be | 26 |
|
| 4 | in [Wh det] used to [be] | 26 |
|
| 5 | in [Wh det] used to [be] | 26 |
|
