| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] still be necessary | 19 |
|
| 2 | [modal v] still be necessary | 19 |
|
| 3 | will still be necessary | 11 |
|
| 4 | will still be necessary | 11 |
|
| 5 | still be necessary [verb] | 11 |
|
| 6 | still be necessary [to-vb] | 11 |
|
