No | Pattern | Freq | Relations |
---|---|---|---|
1 | is [adj] [verb] [adj] [noun pl] | 435 | |
2 | [be] necessary [verb] [adj] [noun pl] | 63 | |
3 | be necessary [verb] [adj] [noun pl] | 63 | |
4 | is necessary [verb] [adj] [noun pl] | 63 | |
5 | is necessary [verb] [adj] [noun] | 60 | |
6 | [is] necessary [verb] [adj] [noun pl] | 30 |