| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] [prep] a | 6345 |
|
| 2 | been [vb pp] [prep] a | 5754 |
|
| 3 | [be] used [prep] a | 1689 |
|
| 4 | be used [prep] a | 1689 |
|
| 5 | been used [prep] [art] | 404 |
|
| 6 | been used [prep] [art] | 404 |
|
| 7 | been used [prep] a | 195 |
|
| 8 | been use [prep] a | 174 |
|
| 9 | [been] used [prep] a | 172 |
|
