No | Pattern | Freq | Relations |
---|---|---|---|
1 | is necessary for [pron] [to-vb] [adj] | 7 | |
2 | is necessary for [pron] [to-vb] [adj] | 7 | |
3 | is necessary [prep] [pron] [to-vb] [adj] | 7 | |
4 | is necessary [prep] [pron] [to-vb] [adj] | 6 | |
5 | is necessary [prep] [pers pn] [to-vb] [adj] | 5 |