| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] used to be called | 37 |
|
| 2 | [Wh det] used to [be] called | 37 |
|
| 3 | [Wh det] used to be called | 37 |
|
| 4 | [Wh det] used to [be] called | 37 |
|
| 5 | [Wh det] used to [be] called | 37 |
|
| 6 | what used to [be] called | 33 |
|
