| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what used to be | 86 |
|
| 2 | [prep] what used to be | 86 |
|
| 3 | in what [modal v] to be | 27 |
|
| 4 | in what used to [be] | 26 |
|
| 5 | in [pron] used to be | 26 |
|
| 6 | in what used to be | 26 |
|
| 7 | in what used [prep] be | 26 |
|
| 8 | in what used to be | 26 |
|
| 9 | in [Wh det] used to be | 26 |
|
