| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary [to-vb] [adj] [noun pl] | 63 |
|
| 2 | be [to-vb] that [adj] [noun pl] | 18 |
|
| 3 | necessary [to-vb] that [adj] [noun pl] | 7 |
|
| 4 | be necessary [to-vb] that [adj] | 7 |
|
| 5 | be necessary [to-vb] that [noun pl] | 6 |
|
