| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [Wh det] [pron] used | 5 |
|
| 2 | to [Wh det] [pers pn] used | 5 |
|
| 3 | to [Wh det] used to | 7 |
|
| 4 | to [Wh det] used [prep] | 7 |
|
| 5 | to [Wh det] used [prep] | 7 |
|
| 6 | to [Wh det] used to | 7 |
|
