| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [Wh det] used to [be] | 6 |
|
| 2 | be [Wh det] used to be | 6 |
|
| 3 | be what used to [be] | 6 |
|
| 4 | be [Wh det] used to be | 6 |
|
| 5 | be [Wh det] used to [be] | 6 |
|
