| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] used [prep] be [adj] | 17 |
|
| 2 | [Wh det] used to [be] [adj] | 17 |
|
| 3 | which used [prep] [be] [adj] | 10 |
|
| 4 | what used [prep] [be] [adj] | 7 |
|
