No | Pattern | Freq | Relations |
---|---|---|---|
1 | is [adj] in [verb] | 533 | |
2 | is essential [prep] [verb] | 39 | |
3 | is essential [prep] [verb] | 39 | |
4 | be essential in [verb] | 20 | |
5 | [be] essential in [verb] | 20 | |
6 | is essential in [verb] | 9 | |
7 | [is] essential in [verb] | 9 |