| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [been] [verb] [conj] | 336 |
|
| 2 | [been] [verb] [conj] a | 328 |
|
| 3 | not [verb] [conj] a | 206 |
|
| 4 | not [been] [verb] a | 32 |
|
