| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [prep] [noun] | 819 |
|
| 2 | been used [prep] [noun] | 308 |
|
| 3 | [vb base] been used [prep] | 230 |
|
| 4 | [vb base] used [prep] [noun] | 11 |
|
