| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] necessary [verb] [that] [adj] | 21 |
|
| 2 | [be] necessary [verb] that [adj] | 21 |
|
| 3 | be necessary [verb] [that] [adj] | 21 |
|
| 4 | [be] necessary [to-vb] [that] [adj] | 20 |
|
| 5 | [is] necessary [verb] [that] [adj] | 13 |
|
| 6 | is necessary [verb] [that] [adj] | 13 |
|
| 7 | [be] necessary [verb] [that] [det] | 12 |
|
| 8 | [be] necessary to ensure [that] [adj] | 11 |
|
| 9 | [be] necessary ensure [that] [adj] | 11 |
|
| 10 | [be] necessary [verb] [that] [adj] | 7 |
|
| 11 | [be] necessary [verb] [that] [adj] | 6 |
|
| 12 | be necessary [verb] [that] [adj] | 6 |
|
