| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been [verb] [prep] [noun] | 461 |
|
| 2 | to have been [vb pp] [prep] [noun] | 446 |
|
| 3 | have been used [prep] [noun] | 233 |
|
| 4 | [verb] been used [prep] [noun] | 233 |
|
| 5 | to have been used [prep] [noun] | 9 |
|
| 6 | to have been use [prep] [noun] | 9 |
|
| 7 | to have be used [prep] [noun] | 9 |
|
| 8 | [to-vb] been used [prep] [noun] | 9 |
|
| 9 | to have [been] used [prep] [noun] | 9 |
|
| 10 | to have [be] used [prep] [noun] | 9 |
|
