| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] for [det] [noun] | 31 |
|
| 2 | [been] used for [det] [noun] | 27 |
|
| 3 | has [been] used for [noun] | 14 |
|
| 4 | has [been] used for [det] | 10 |
|
