| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] used [prep] [be] [vb pp] | 73 |
|
| 2 | used [prep] [be] [vb pp] [noun sg] | 12 |
|
| 3 | [Wh det] used [prep] [be] [noun sg] | 11 |
|
