| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is necessary to [be] aware | 6 |
|
| 2 | [is] necessary to [be] aware | 6 |
|
| 3 | be necessary to [be] aware | 6 |
|
| 4 | [be] necessary to be aware | 6 |
|
