| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [be] used [prep] | 312 |
|
| 2 | has n't [be] [prep] | 75 |
|
| 3 | n't [be] used [prep] | 28 |
|
| 4 | has n't [be] used | 7 |
|
