| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [verb] a | 1929 |
|
| 2 | not [verb] [verb] a | 748 |
|
| 3 | not [verb] [been] [verb] | 623 |
|
| 4 | not [verb] [been] a | 81 |
|
| 5 | not [been] [verb] a | 32 |
|
