| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] been used for [adj] | 8 |
|
| 2 | have [not/n't] been used for [adj] | 8 |
|
| 3 | [not/n't] been used for [adj] [noun] | 9 |
|
| 4 | [not/n't] been used for [adj] [noun sg] | 5 |
|
