| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is necessary [verb] [adj] [noun pl] | 63 |
|
| 2 | is necessary [to-vb] [adj] [noun pl] | 63 |
|
| 3 | is necessary [verb] [adj] [noun pl] | 29 |
|
| 4 | is necessary [verb] [det] [noun pl] | 21 |
|
| 5 | is necessary [verb] [num] [noun pl] | 11 |
|
| 6 | is necessary [verb] these [noun pl] | 8 |
|
| 7 | is necessary [verb] these [noun pl] | 8 |
|
| 8 | is necessary [verb] such [noun pl] | 7 |
|
| 9 | is necessary [verb] such [noun pl] | 7 |
|
| 10 | is necessary [verb] two [noun pl] | 6 |
|
| 11 | is necessary [verb] two [noun pl] | 6 |
|
| 12 | is necessary [verb] three [noun pl] | 5 |
|
| 13 | is necessary understand [adj] [noun pl] | 5 |
|
| 14 | is necessary [verb] [adj] statements | 5 |
|
| 15 | is necessary [verb] three [noun pl] | 5 |
|
| 16 | is necessary to understand [adj] [noun pl] | 5 |
|
| 17 | is necessary to make [adj] [noun pl] | 5 |
|
| 18 | is necessary make [adj] [noun pl] | 5 |
|
