| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] [verb] that | 2070 |
|
| 2 | [be] necessary [verb] that | 106 |
|
| 3 | be necessary [verb] that | 106 |
|
| 4 | is necessary [verb] [conj] | 78 |
|
| 5 | [is] necessary [verb] that | 54 |
|
