| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] it used to be | 31 |
|
| 2 | [Wh det] it used to be | 31 |
|
| 3 | [Wh det] it used to [be] | 31 |
|
| 4 | [Wh det] it used to [be] | 31 |
|
| 5 | what it used to [be] | 30 |
|
