| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] used [prep] [det] [noun pl] | 85 |
|
| 2 | to [be] used [prep] [noun pl] | 76 |
|
| 3 | to [be] used [prep] [det] | 69 |
|
| 4 | to [be] [prep] [det] [noun pl] | 33 |
|
