| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [vb infin] been worse | 8 |
|
| 2 | not [vb infin] be worse | 8 |
|
| 3 | not [vb infin] [been] worse | 8 |
|
| 4 | not [vb infin] [be] worse | 8 |
|
