No | Pattern | Freq | Relations |
---|---|---|---|
1 | is necessary [to-vb] [det] [noun pl] | 21 | |
2 | is necessary [verb] [det] [noun pl] | 21 | |
3 | is necessary [verb] these [noun pl] | 8 | |
4 | is necessary [verb] such [noun pl] | 7 | |
5 | is necessary [verb] [det] statements | 5 | |
6 | is necessary to understand [det] [noun pl] | 5 | |
7 | is necessary understand [det] [noun pl] | 5 |