| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been used for the [adj] | 10 |
|
| 2 | have been used for the [adj] | 10 |
|
| 3 | has been used for the [adj] | 6 |
|
| 4 | [vb -s] been used for the [adj] | 6 |
|
| 5 | been used for the [adj] [noun] | 9 |
|
| 6 | been used for the [adj] [noun sg] | 7 |
|
