| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been used for [adj] | 61 |
|
| 2 | [verb] [not/n't] been for [adj] | 23 |
|
| 3 | [verb] [not/n't] been used for | 16 |
|
| 4 | [not/n't] been used for [adj] | 9 |
|
