| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not have [vb pp] a | 130 |
|
| 2 | have [vb pp] at a | 54 |
|
| 3 | not have [vb pp] at | 35 |
|
| 4 | not [vb pp] at a | 13 |
|
