| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] not be [prep] a | 8 |
|
| 2 | [vb base] not [been] [prep] a | 7 |
|
| 3 | [vb base] not [be] [prep] a | 7 |
|
| 4 | [vb base] not been [prep] a | 7 |
|
