| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] that [adj] | 1052 |
|
| 2 | [is] necessary [verb] [adj] | 216 |
|
| 3 | [is] necessary [verb] that | 54 |
|
| 4 | necessary [verb] that [adj] | 30 |
|
