| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [been] a [adj] | 368 |
|
| 2 | it [vb -s] not [been] [adj] | 113 |
|
| 3 | [vb -s] not [been] a [adj] | 60 |
|
| 4 | it [vb -s] not [been] a | 26 |
|
