| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb -s] [been] used for | 33 |
|
| 2 | [vb -s] [been] used for [noun] | 16 |
|
| 3 | [noun] [vb -s] [been] for [noun] | 13 |
|
