| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [verb] [prep] a | 6345 |
|
| 2 | not [verb] [prep] a | 2162 |
|
| 3 | not [been] [verb] [prep] | 1491 |
|
| 4 | not [been] [verb] a | 32 |
|
| 5 | not [been] [prep] a | 29 |
|
