| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been used for many [noun] | 13 |
|
| 2 | have been used for many [noun] | 13 |
|
| 3 | has been used for many [noun] | 8 |
|
| 4 | [vb -s] been used for many [noun] | 8 |
|
| 5 | been used for many [noun] [prep] | 8 |
|
| 6 | been used for many [noun] [prep] | 8 |
|
| 7 | been used for many [noun] in | 5 |
|
| 8 | been used for many [noun] in | 5 |
|
