No | Pattern | Freq | Relations |
---|---|---|---|
1 | [pers pn] is necessary for [pers pn] [to-vb] | 21 | |
2 | it is necessary for [pers pn] [verb] | 21 | |
3 | [pers pn] is necessary for [pers pn] [verb] | 21 | |
4 | [pers pn] is necessary for us [verb] | 9 |
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