| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not [vb infin] be achieved | 14 |
|
| 2 | [modal v] not [vb infin] be achieved | 14 |
|
| 3 | could not [vb infin] be achieved | 10 |
|
| 4 | could not [vb infin] be achieved | 10 |
|
| 5 | not [vb infin] be achieved [prep] | 10 |
|
| 6 | not [vb infin] be achieved [prep] | 10 |
|
| 7 | not [vb infin] be achieved without | 5 |
|
| 8 | not [vb infin] be achieved without | 5 |
|
