| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] used [prep] [adj] [adj] [noun pl] | 10 |
|
| 2 | been used [prep] [adj] [adj] [noun pl] | 10 |
|
| 3 | [been] used [prep] [det] [adj] [noun pl] | 6 |
|
