| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] used for [adj] [noun] | 59 |
|
| 2 | had [been] for [adj] [noun] | 27 |
|
| 3 | had [been] used for [adj] | 14 |
|
| 4 | had [been] used for [noun] | 11 |
|
