| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been used [prep] [noun] | 70 |
|
| 2 | [noun sg] [vb base] been [prep] [noun] | 53 |
|
| 3 | [noun sg] [vb base] been used [prep] | 18 |
|
| 4 | [noun sg] been used [prep] [noun] | 6 |
|
