| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] used [prep] [art] [n mass] | 5 |
|
| 2 | [been] used [prep] a [n mass] | 5 |
|
| 3 | [been] used [prep] a [n mass] | 5 |
|
| 4 | [been] used [prep] [art] [n mass] | 5 |
|
