| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [been] a [noun sg] for | 13 |
|
| 2 | not been a [noun] for | 13 |
|
| 3 | not [been] a [noun] for | 13 |
|
| 4 | not [been] a [noun] for | 9 |
|
