| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [be] used [prep] [adj] | 83 |
|
| 2 | [Wh det] [be] used [prep] [adj] | 56 |
|
| 3 | [Wh det] [vb -s] [be] used [prep] | 24 |
|
| 4 | [Wh det] [vb -s] [be] [prep] [adj] | 14 |
|
