| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] used [prep] [adj] | 269 |
|
| 2 | used [prep] [det] [adj] | 241 |
|
| 3 | [been] [prep] [det] [adj] | 166 |
|
| 4 | [been] used [prep] [det] | 101 |
|
