| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] they used to be | 20 |
|
| 2 | [Wh det] they used to [be] | 20 |
|
| 3 | [Wh det] they used to be | 20 |
|
| 4 | [Wh det] they used to [be] | 20 |
|
| 5 | what they used to [be] | 19 |
|
