No | Pattern | Freq | Relations |
---|---|---|---|
1 | is [adj] [verb] [prep] [adj] [noun] | 501 | |
2 | be necessary [verb] [prep] [adj] [noun] | 43 | |
3 | [be] necessary [verb] [prep] [adj] [noun] | 43 | |
4 | [is] necessary [verb] [prep] [adj] [noun] | 26 | |
5 | is necessary [verb] [prep] [adj] [noun] | 24 |